R. Wang, H. C. Frankis, H. M. Mbonde, D. B. Bonneville, and J. D. B. Bradley, "Erbium-ytterbium co-doped aluminum oxide thin films: co-sputtering deposition, photoluminescence, luminescent lifetime, energy transfer and quenching fraction," accepted for publication in Optical Materials (2020).
K. Miarabbas Kiani, H. M. Mbonde, H. C. Frankis, R. Mateman, A. Leinse, A. P. Knights, and J. D. B. Bradley, "Four-wave mixing in high-Q tellurium-oxide-coated silicon nitride microring resonators," accepted for publication in OSA Continuum (2020).
N. Singh, H. M. Mbonde, H. C. Frankis, E. Ippen, J. D. B. Bradley, and F. X. Kärtner, "Nonlinear silicon photonics on CMOS compatible tellurium oxide," accepted for publication in Photonics Research (2020).
D. B. Bonneville, H. C. Frankis, R. Wang, and J. D. B. Bradley, "Erbium-ytterbium co-doped aluminum oxide waveguide amplifiers fabricated by reactive co-sputtering and wet chemical etching," Optics Express28(20), 30130–30140 (2020).
J. W. Miller, M. Chesaux, D. Deligiannis, P. Mascher, and J. D. B. Bradley, "Low-loss GeO2 thin films deposited by ion-assisted alternating current reactive sputtering for waveguide applications," Thin Solid Films709, 138165 (2020).
C. M. Naraine, J. W. Miller, H. C. Frankis, D. E. Hagan, P. Mascher, J. H. Schmid, P. Cheben, A. P. Knights, and J. D. B. Bradley, "Subwavelength grating metamaterial waveguides functionalized with tellurium oxide cladding," Optics Express28(12), 18538–18547 (2020).
H. M. Mbonde, H. C. Frankis, and J. D. B. Bradley, "Enhanced nonlinearity and engineered anomalous dispersion in TeO2-coated Si3N4 waveguides," IEEE Photonics Journal12(2), 2200210 (2020).
N. Li, M. Xin, Z. Su, E. S. Magden, N. Singh, J. Notaros, E. Timurdogan, Purnawirman, J. D. B. Bradley, and M. R. Watts, "A silicon photonic data link with a monolithic erbium-doped laser," Scientific Reports10, 1114 (2020).
H. C. Frankis, H. M. Mbonde, D. B. Bonneville, C. Zhang, R. Mateman, A. Leinse, and J. D. B. Bradley, "Erbium-doped TeO2-coated Si3N4 waveguide amplifiers with 5 dB net gain," Photonics Research8(2), 127–134 (2020).
K. Miarabbas Kiani, H. C. Frankis, H. M. Mbonde, R. Mateman, A. Leinse, A. P. Knights, and J. D. B. Bradley, "Thulium-doped tellurium oxide waveguide amplifier with 7.6 dB net gain on a silicon nitride chip," Optics Letters44(23), 5788–5791 (2019).
H. C. Frankis, K. Miarabbas Kiani, D. B. Bonneville, C. Zhang, S. Norris, R. Mateman, A. Leinse, N. D. Bassim, A. P. Knights, and J. D. B. Bradley, "Low-loss TeO2-coated Si3N4 waveguides for application in photonic integrated circuits," Optics Express27(9), 12529–12540 (2019).
D. B. Bonneville, M. A. Méndez-Rosales, H. C. Frankis, L. Monteiro Gonçalves, R. N. Kleiman, and J. D. B. Bradley, "Flexible and low-cost fabrication of optical waveguides by UV laser resist-mask writing," Optical Materials Express9(4), 1728–1737 (2019).
H. C. Frankis, K. Miarabbas Kiani, D. Su, R. Mateman, A. Leinse, and J. D. B. Bradley, "High-Q tellurium-oxide-coated silicon nitride microring resonators," Optics Letters44(1), 118–121 (2019).
H. C. Frankis, D. Su, D. B. Bonneville, and J. D. B. Bradley, “A tellurium oxide microcavity resonator sensor integrated on-chip with a silicon waveguide,” Sensors, 18(11), 4061 (2018).
M. Pollnau and J. D. B. Bradley, “Optically pumped rare-earth-doped Al2O3 distributed feedback lasers on silicon [Invited],” Optics Express26(18), 24164–24189 (2018).
Z. Su, N. Li, H. C. Frankis, E. S. Magden, T. N. Adam, G. Leake, D. Coolbaugh, J. D. B. Bradley, and M. R. Watts, “High-Q-factor Al2O3 micro-trench cavities integrated with silicon nitride waveguides on silicon,” Optics Express26(9), 11161–11170 (2018).
E. S. Magden, P. Callahan, N. Li, J. D. B. Bradley, N. Singh, A. Ruocco, L. A. Kolodziejski, E. P. Ippen, and M. R. Watts, “Frequency domain spectroscopy in rare-earth-doped gain media,” IEEE Journal of Selected Topics in Quantum Electronics24(5), 1–10 (2018).
N. Li, E. S. Magden, Z. Su, N. Singh, A. Ruocco, M. Xin, M. Byrd, P. T. Callahan, J. D. B. Bradley, C. Baiocco, D. Vermeulen, and M. R. Watts, “Broadband 2-µm emission on silicon chips: monolithically integrated holmium lasers,” Optics Express26(3), 2220–2230 (2018).
J. W. Miller, Z. Khatami, J. Wojcik, J. D. B. Bradley, and P. Mascher, “Integrated ECR-PECVD and magnetron sputtering system for rare-earth-doped Si-based materials,” Surface and Coatings Technology336, 99–105 (2018).
P. Loiko, N. Ismail, J. D. B. Bradley, M. Götelid, and M. Pollnau, “Refractive-index variation with rare-earth incorporation in amorphous Al2O3 thin films,” Journal of Non-Crystalline Solids476, 95–99 (2017).
Purnawirman, N. Li, G. Singh, E. S. Magden, Z. Su, N. Sing, M. Moresco, G. Leake, J. D. B. Bradley, and M. R. Watts, “Reliable integrated photonic light sources using curved Al2O3:Er3+ distributed feedback lasers,” IEEE Photonics Journal9(4), 1504708 (2017).
E. S. Magden, N. Li, Purnawirman, J. D. B. Bradley, N. Singh, A. Ruocco, G. S. Petrich, G. Leake, D. Coolbaugh, E. P. Ippen, M. R. Watts, and L. A. Kolodziejski, “Monolithically-integrated distributed feedback laser compatible with CMOS processing,” Optics Express25(15), 18058–18065 (2017).
Purnawirman, N. Li, E. S. Magden, G. Singh, N. Singh, A. Baldycheva, E. Shah Hosseini, J. Sun, M. Moresco, T. N. Adam, G. Leake, D. Coolbaugh, J. D. B. Bradley, and M. R. Watts, “Ultra-narrow-linewidth Al2O3:Er3+ lasers with a wavelength insensitive waveguide design on a wafer-scale silicon nitride platform,” Optics Express25(12), 13705–13713 (2017).
Purnawirman, N. Li, E. S. Magden, G. Singh, M. Moresco, T. N. Adam, G. Leake, D. Coolbaugh, J. D. B. Bradley, and M. R. Watts, “Wavelength division multiplexed light source monolithically integrated on a silicon photonics platform,” Optics Letters42(9), 1772–1775 (2017).
N. Li, Z. Su, Purnawirman, E. S. Magden, C. V. Poulton, A. Ruocco, N. Singh, M. J. Byrd, J. D. B. Bradley, G. Leake, and M. R. Watts, “Athermal synchronization of laser source with WDM filter in a silicon photonics platform” Applied Physics Letters110(21), 21105 (2017).
N. Li, Purnawirman, Z. Su, E. S. Magden, P. T. Callahan, K. Shtyrkova, M. Xin, A. Ruocco, C. Baiocco, E. P. Ippen, F. X. Kärtner, J. D. B. Bradley, D. Vermeulen, and M. R. Watts, "High-power thulium lasers on a silicon photonics platform," Optics Letters42(6), 1181–1184 (2017).
Z. Su, N. Li, E. S. Magden, M. Byrd, Purnawirman, T. N. Adam, G. Leake, D. Coolbaugh, J. D. B. Bradley, and M. R. Watts, “Ultra-compact and low-threshold thulium microcavity laser monolithically integrated on silicon,” Optics Letters41(24), 5708–5711 (2016).
G. Singh, Purnawirman, J. D. B. Bradley, N. Li, E. S. Magden, M. Moresco, T. N. Adam, G. Leake, D. Coolbaugh, and M. R. Watts, “Resonant pumped erbium-doped waveguide lasers using distributed Bragg reflector cavities,” Optics Letters41(6), 1189–1192 (2016).
C. C. Evans, K. Shtyrkova, O. Reshef, M. Moebius, J. D. B. Bradley, S. Griesse-Nascimento, E. Ippen, and E. Mazur, “Multimode phase-matched third-harmonic generation in sub-micrometer-wide anatase TiO2 waveguides,” Optics Express23(6), 7832–7841 (2015).
E. Shah Hosseini, Purnawirman, J. Sun, J. D. B. Bradley, T. N. Adam, G. Leake, D. Coolbaugh, and M. R. Watts, “CMOS compatible 75 mW erbium-doped distributed feedback laser,” Optics Letters39(11), 3106–3109 (2014).
J. D. B. Bradley, E. Shah Hosseini, Purnawirman, Z. Su, T. N. Adam, G. Leake, D. Coolbaugh, and M. R. Watts, “Monolithic erbium- and ytterbium-doped microring lasers on silicon chips,” Optics Express22(10), 12226–12237 (2014).
D. Coolbaugh, T. N. Adam, G. L. Leake, P. Nguyen, M. L. Pautler, J. D. B. Bradley, E. Shah Hosseini, and M. R. Watts, “Integrated silicon photonics fabrication on a 300mm platform,” Chip Scale Review17(3), 20–23 (2013).
J. Sun, Purnawirman, E. Shah Hosseini, J. D. B. Bradley, T. N. Adam, G. Leake, D. Coolbaugh, and M. R. Watts, “Uniformly spaced λ/4-shifted Bragg grating array with wafer-scale CMOS-compatible process,” Optics Letters38(20), 4002–4004 (2013).
C. C. Evans, K. Shtyrkova, J. D. B. Bradley, O. Reshef, E. Ippen, and E. Mazur, “Spectral broadening in anatase titanium dioxide waveguides at telecommunications and near-visible wavelengths,” Optics Express21(15), 18582–18591 (2013).
Purnawirman, J. Sun, T. N. Adam, G. Leake, D. Coolbaugh, J. D. B. Bradley, E. Shah Hosseini, and M. R. Watts, “C- and L-band erbium-doped waveguide lasers with wafer-scale silicon nitride cavities,” Optics Letters38(11), 1760–1762 (2013).
J. D. B. Bradley, C. C. Evans, J. T. Choy, O. Reshef, P. B. Deotare, F. Parsy, K. C. Phillips, M. Lončar, and E. Mazur, “Submicrometer-wide amorphous and polycrystalline anatase TiO2 waveguides for microphotonic devices,” Optics Express20(21), 23821–23831 (2012).
J. T. Choy, J. D. B. Bradley, P. B. Deotare, I. Burgess, C. C. Evans, E. Mazur and M. Lončar, “Integrated TiO2 resonators for visible photonics,” Optics Letters37(4), 539–541 (2012).
C. C. Evans, J. D. B. Bradley, E. A. Martí-Panameño, and E. Mazur, “Mixed two- and three-photon absorption in bulk rutile (TiO2) around 800 nm,” Optics Express20(3), 3118–3128 (2012).
J. D. B. Bradley and M. Pollnau, “Erbium-doped integrated waveguide amplifiers and lasers,” Laser & Photonics Reviews5(3), 368–403 (2011).
L. Agazzi, J. D. B. Bradley, M. Dijkstra, F. Ay, G. Roelkens, R. Baets, K. Wörhoff, and M. Pollnau, “Monolithic integration of erbium-doped amplifiers with silicon-on-insulator waveguides,” Optics Express18(26), 27703– 27711 (2010).
J. D. B. Bradley, R. Stoffer, A. Bakker, L. Agazzi, F. Ay, K. Wörhoff, and M. Pollnau, “Integrated Al2O3:Er3+ zero-loss optical amplifier and power splitter with 40-nm bandwidth,” IEEE Photonics Technology Letters22(5), 278–280 (2010).
J. D. B. Bradley, L. Agazzi, D. Geskus, F. Ay, K. Wörhoff, and M. Pollnau, “Gain bandwidth of 80 nm and 2 dB/cm peak gain in Al2O3:Er3+ optical amplifiers on silicon,” Journal of the Optical Society of America B27(2), 187–196 (2010).
J. D. B. Bradley, R. Stoffer, L. Agazzi, F. Ay, K. Wörhoff, and M. Pollnau, “Integrated Al2O3:Er3+ ring lasers on silicon with wide wavelength selectivity,” Optics Letters35(1), 73–75 (2010).
J. D. B. Bradley, M. Costa e Silva, M. Gay, L. Bramerie, A. Driessen, K. Wörhoff, J. C. Simon, and M. Pollnau, “170 Gbit/s transmission in an erbium-doped waveguide amplifier on silicon,” Optics Express17(24), 22201–22208 (2009).
H. Kühn, S. Heinrich, A. Kahn, K. Petermann, J. D. B. Bradley, K. Wörhoff, M. Pollnau, and G. Huber, “Monocrystalline Yb3+:(Gd,Lu)2O3 channel waveguide laser at 976.8 nm,” Optics Letters34(18), 2718–2720 (2009).
K. Wörhoff, J. D. B. Bradley, F. Ay, D. Geskus, T. P. Blauwendraat, and M. Pollnau, “Reliable low-cost fabrication of low-loss Al2O3:Er3+ waveguides with 5.4-dB optical gain,” IEEE Journal of Quantum Electronics45(5), 454–461 (2009).
A. Kahn, S. Heinrich, H. Kühn, K. Petermann, J. D. B. Bradley, K. Wörhoff, M. Pollnau, and G. Huber, “Low threshold monocrystalline Nd:(Gd,Lu)2O3 channel waveguide laser,” Optics Express17(6), 4412–4418 (2009).
A. Kahn, H. Kühn, S. Heinrich, K. Petermann, J. D. B. Bradley, K. Wörhoff, M. Pollnau, Y. Kuzminykh, and G. Huber, “Amplification in epitaxially grown Er:(Gd, Lu)2O3 waveguides for active integrated optical devices,” Journal of the Optical Society of America B25(11), 1850–1853 (2008).
J. D. B. Bradley, F. Ay, K. Wörhoff, and M. Pollnau, “Fabrication of low-loss channel waveguides in Al2O3 and Y2O3 layers by inductively coupled plasma reactive ion etching,” Applied Physics B89(2-3), 311–318 (2007).
A. P. Knights, J. D. B. Bradley, S. H. Gou, and P. E. Jessop, “Silicon-on-insulator waveguide photodetector with self-ion-implantation-engineered-enhanced infrared response,” Journal of Vacuum Science & Technology A24(3), 783–786 (2006).
J. D. B. Bradley, P. E. Jessop, and A. P. Knights, “A silicon waveguide integrated optical power monitor with enhanced sensitivity at 1550nm,” Applied Physics Letters86(24), 241103 (2005).
Conference Papers
H. M. Mbonde and J. D. B. Bradley, “Numerical modelling of CW Raman amplification in integrated TeO2 waveguides,” presented at Photonics North, Virtual Conference, 26–28 May 2020, paper TD-4-27-5.
C. M. Naraine, J. W. Miller, H. C. Frankis, D. E. Hagan, P. Mascher, J. H. Schmid, P. Cheben, A. P. Knights, and J. D. B. Bradley, “Subwavelength grating metamaterial waveguides functionalized with tellurium oxide cladding,” presented at Photonics North, Virtual Conference, 26–28 May 2020, paper PM-3-27-2.
D. B. Bonneville, J. W. Miller, C. Smyth, and J. D. B. Bradley, “Low temperature silicon oxy-nitride deposition by plasma enhanced chemical vapour deposition,” presented at Photonics North, Virtual Conference, 26–28 May 2020, paper PM-3-27-3.
K. Miarabbas Kiani, H. M. Mbonde, R. Mateman, A. Leinse, A. P. Knights, and J. D. B. Bradley, “Four wave mixing in tellurium-oxide-coated silicon nitride microring resonators,” presented at Photonics North, Virtual Conference, 26–28 May 2020, paper PM-5-28-3.
H. C. Frankis, H. M. Mbonde, D. B. Bonneville, C. Zhang, R. Mateman, A. Leinse, and J. D. B. Bradley, “Erbium-doped tellurium-oxide-coated silicon nitride waveguide amplifiers,” in Conference on Lasers and Electro-Optics, Virtual Conference, 2020, OSA Technical Digest (online) (Optical Society of America, 2020), paper SW3F.2.
H. M. Mbonde, K. Miarabbas Kiani, H. C. Frankis, and J. D. B. Bradley, “TeO2-coated Si3N4 waveguides with engineered dispersion and enhanced nonlinearity,” in Conference on Lasers and Electro-Optics, Virtual Conference, 2020, OSA Technical Digest (online) (Optical Society of America, 2020), paper JTu2A.151.
K. Miarabbas Kiani, H. C. Frankis, R. Mateman, A. Leinse, A. P. Knights, and J. D. B. Bradley, “Thulium-doped tellurium oxide amplifier for optical communication in the 2-µm window on a silicon nitride integrated optics platform,” Photonics & Electromagnetics Research Symposium (PIERS 2019), Rome, Italy, 17–20 June 2019.
D. B. Bonneville, H. C. Frankis, R. Wang, and J. D. B. Bradley, “Reactive co-sputtering and wet etching of Er:Yb co-doped Al2O3 waveguides with optical gain,” presented at Photonics North, Quebec City, Canada, 21–23 May 2019.
H. C. Frankis, D. Su, D. B. Bonneville, and J. D. B. Bradley, “Tellurium oxide resonator sensor integrated on a silicon chip,” presented at Photonics North, Quebec City, Canada, 21–23 May 2019.
H. M. Mbonde, H. C. Frankis, and J. D. B. Bradley, “Optimization of nonlinear optical properties of tellurium-oxide-coated silicon nitride waveguides,” presented at Photonics North, Quebec City, Canada, 21–23 May 2019.
K. Miarabbas Kiani, H. C. Frankis, R. Mateman, A. Leinse, A. P. Knights, and J. D. B. Bradley, “Thulium-doped tellurium oxide amplifier for optical communication in the 2-µm window,” presented at Photonics North, Quebec City, Canada, 21–23 May 2019.
J. W. Miller, C. M. Naraine, H. C. Frankis, D. E. Hagan, A. P. Knights, P. Mascher, and J. D. B. Bradley, “Subwavelength grating waveguides functionalized with tellurium oxide cladding,” presented at Photonics North, Quebec City, Canada, 21–23 May 2019.
D. B. Bonneville, M. A. Méndez-Rosales, H. C. Frankis, and J. D. B. Bradley, “UV laser resist-mask writing for low-cost prototyping of integrated optical devices,” in Conference on Lasers and Electro-Optics, San Jose, CA, 2019, OSA Technical Digest (online) (Optical Society of America, 2019), paper SF2O.4.
H. C. Frankis, K. Miarabbas Kiani, D. B. Bonneville, C. Zhang, S. Norris, R. Mateman, A. Leinse, N. D. Bassim, A. P. Knights, and J. D. B. Bradley, “Low-loss TeO2 waveguides integrated on a Si3N4 platform for active and nonlinear optical devices,” in Conference on Lasers and Electro-Optics, San Jose, CA, 2019, OSA Technical Digest (online) (Optical Society of America, 2019), paper STh3N.6.
J. D. B. Bradley, H. C. Frankis, K. Miarabbas Kiani, D. Su, R. Mateman, and A. Leinse, "High-Q tellurite glass microring resonators on a low-loss silicon-nitride-integrated optics platform,” OPTO, Photonics West, San Francisco, California, 2019, Technical Abstract Summaries, Conference “Integrated Optics: Devices, Materials, and Technologies XXIII,” Session 9, paper 10921-38.
H. C. Frankis, D. B. Bonneville, D. Su, and J. D. B. Bradley, "Silicon waveguide integrated with a tellurium oxide whispering gallery resonator on chip,” OPTO, Photonics West, San Francisco, California, 2019, Technical Abstract Summaries, Conference “Silicon Photonics XIV,” Session 3, paper 10923-12.
D. B. Bonneville, H. C. Frankis, and J. D. B. Bradley, “Direct-write photolithography for rapid prototyping of silicon nitride waveguides on silicon,” presented at The 14th International Ceramics Congress (CIMTEC), Perugia, Italy, 4–8 June 2018.
J. W. Miller, A. P. Knights, J. D. B. Bradley, and P. Mascher, “Signal enhancement from silicon slot waveguide with ECR-PECVD erbium-doped silica cladding,” presented at Photonics North, Montreal, Canada, 5–7 June 2018.
H. C. Frankis, Z. Su, N. Li, E. S. Magden, M. Ye, M. R. Watts, and J. D. B. Bradley, “Four-wave mixing in a high-Q aluminum oxide microcavity on silicon,” in Conference on Lasers and Electro-Optics, San Jose, CA, 2018, OSA Technical Digest (online) (Optical Society of America, 2018), paper STh3I.3.
N. Li, E. S. Magden, Z. Su, N. Singh, A. Ruocco, M. Xin, M. Byrd, P. T. Callahan, J. D. B. Bradley, D. Vermeulen, and M. R. Watts, “Monolithically integrated holmium lasers on silicon chips,” Conference on Lasers and Electro-Optics, San Jose, CA, 2018, OSA Technical Digest (online) (Optical Society of America, 2018), paper SF1A.6.
K. Miarabbas Kiani, A. P. Knights, J. D. B. Bradley, S. Norris, and N. D. Bassim, “Improved fiber-chip coupling in waveguides by focused ion beam modification,” 11th Annual FIB SEM Workshop, McMaster University, Hamilton, ON, Canada, April 2018.
N. Li, Purnawirman, E. S. Magden, G. Singh, N. Singh, A. Baldycheva, E. S. Hosseini, J. Sun, M. Moresco, T. N. Adam, G. Leake, D. Coolbaugh, J. D. B. Bradley, and M. R. Watts, “Ultra-narrow-linewidth erbium-doped lasers on a silicon photonics platform,” in Proc. SPIE 10537, Silicon Photonics XIII (SPIE, 2018), p. 1053712.
H. C. Frankis, C. Zhang, and J. D. B. Bradley, “CMOS compatible tellurium oxide waveguides for silicon photonic amplifiers,” Photoluminescence in Rare Earths: Photonic Materials and Devices (PRE'17), Rome, Italy, November 2017.
N. Li, Purnawirman, G. Singh, E. S. Magden, M. Moresco, T. Adam, G. Leake, D. Coolbaugh, J. D. B. Bradley, and M. R. Watts, “Reliable silicon photonic light source using curved distributed feedback lasers,” Advanced Photonics (IPR, NOMA, Sensors, Networks, SPPCom, PS), New Orleans, LA, 2017, OSA Technical Digest (online) (Optical Society of America, 2017), paper ITu2A.5
M. Ye, J. D. B. Bradley, and A. P. Knights, “Amplified silicon photonics,” Asia Communications and Photonics, Guangzhou, China, November 2017, paper M2D.1. Invited Talk.
J. W. Miller, D. B. Bonneville, N. Vadivelu, Z. Khatami, J. Wojcik, J. D. B. Bradley, and P. Mascher, “Green light emission from terbium-doped Si-based thin films: ECR-PECVD films doped via a circular HV magnetron sputtering source,” Photonics North, Ottawa, Canada, 2017,Proceedings of Photonics North, paper 15.20.
H. C. Frankis and J. D. B. Bradley, “Reactively sputtered tellurium oxide films for integrated photonics,” Photonics North, Ottawa, Canada, 2017, Proceedings of Photonics North, paper MATERIALS-54.
N. Li, Z. Su, Purnawirman, E. S. Magden, A. Ruocco, N. K. Singh, M. J. Byrd, C. V. Poulton, J. D. B. Bradley, G. Leake, D. Coolbaugh, and M. R. Watts, “Demonstration of athermally synchronized distributed feedback laser with microring filter,” Conference on Lasers and Electro-Optics, San Jose, CA, 2017, OSA Technical Digest (online) (Optical Society of America, 2017), paper STh3N.6
E. S. Magden, P. T. Callahan, N. Li, K. Shtyrkova, A. Ruocco, N. K. Singh, M. Xin, D. Vermeulen, J. D. B. Bradley, G. Leake, D. Coolbaugh, L. Kolodziejski, F. Kaertner, E. P. Ippen, and M. R. Watts, “Frequency-domain measurement of spontaneous emission lifetime in rare-earth-doped gain media,” Conference on Lasers and Electro-Optics, San Jose, CA, 2017, OSA Technical Digest (online) (Optical Society of America, 2017), paper SM1K.3.
Purnawirman, N. Li, E. S. Magden, G. Singh, J. D. B. Bradley, M. Moresco, T. N. Adam, G. Leake, D. Coolbaugh, and M. R. Watts, "Monolithic integration of WDM light source for silicon photonics by cascade of Al2O3:Er3+ DFB lasers," Frontiers in Optics/Laser Science, Annual Meeting of the Optical Society of America, Rochester, New York, 2016, paper FTu2D.5.
Z. Su, J. D. B. Bradley, N. Li, E. S. Magden, Purnawirman, D. Coleman, N. Fahrenkopf, C. Baiocco, T. N. Adam, G. Leake, D. Coolbaugh, D. Vermeulen, and M. R. Watts, “Ultra-compact CMOS-compatible ytterbium microlaser,” Advanced Photonics 2016, Integrated Photonics Research, Silicon and Nano-Photonics, Vancouver, Canada, 2016, Technical Digest (Optical Society of America, Washington, DC 2016), paper IW1A.3.
E. S. Magden, Purnawirman, N. Li, G. Singh, J. D. B. Bradley, G. Petrich, G. Leake, D. Coolbaugh, M. R. Watts, L. Kolodziejski, “Fully CMOS-compatible integrated distributed feedback laser with 250oC fabricated Al2O3:Er3+ gain medium,” Conference on Lasers and Electro-Optics, San Jose, California, 2016, Technical Digest (Optical Society of America, Washington, DC 2016), paper SM1G.2.
E. S. Magden, M. Peng, J. D. B. Bradley, G. Leake, D. Coolbaugh, L. Kolodziejski, F. X. Kaertner, and M. R. Watts, “Laser frequency stabilization using Pound-Drever-Hall technique with an integrated TiO2 athermal resonator,” Conference on Lasers and Electro-Optics, San Jose, California, 2016, Technical Digest (Optical Society of America, Washington, DC 2016), paper Stu1H.3.
J. Miller, J. Wojcik, J. D. B. Bradley, and P. Mascher, “Calibration of a circular HV magnetron sputtering source for in-situ RE doping of ECR-PECVD Si-based thin films,” ECS Meeting Abstracts, MA2016-01, 229th Electrochemical Society (ECS) Meeting, San Diego, USA, May 2016, paper 2119.
D. Vermeulen, Z. Su, N. Li, K. Shtyrkova, P. Callahan, E. Salih Magden, Purnawirman, E. Timurdogan, J. D. B. Bradley, E. Ippen, F. X. Kaertner, M. R. Watts, G. Leake, D. Coolbaugh, and V. Stojanovic, “Electronic-photonic integration platform enabling a chip-scale optical synthesizer,” IEEE International Frequency Control Symposium, New Orleans, LA, USA, 2016.
J. D. B. Bradley, Z. Su, E. S. Magden, N. Li, M. Byrd, Purnawirman, T. N. Adam, G. Leake, D. Coolbaugh, and M. R. Watts, "1.8-µm thulium microlasers integrated on silicon,” OPTO, Photonics West, San Francisco, California, 2016, Technical Abstract Summaries, Conference "Optical Components and Materials XIII", SPIE Proceedings Volume 9744, paper 9744OU.
C. M. Sorace-Agaskar, P. T. Callahan, K. Shtyrkova, A. Baldycheva, M. Moresco, J. D. B. Bradley, M. Y Peng, N. Li, E. S. Magden, Purnawirman, M. Y. Sander, G. Leake, D. D. Coolbaugh, M. R. Watts, and F. X. Kaertner, “Integrated mode-locked lasers in a CMOS-compatible silicon photonic platform,” Conference on Lasers and Electro-Optics, San Jose, California, 2015, Technical Digest (Optical Society of America, Washington, DC 2015), paper SM2I.5.
M. R. Watts, E. Timurdogan, J. Sun, E. Shah Hosseini, C. Sorace-Agaskar, A. Yaacobi, Z. Su, M. Moresco, Purnawirman, J. D. B. Bradley, G. Leake, T. N. Adam, and D. Coolbaugh, “Very large scale silicon photonics integration,” Conference on Lasers and Electro-Optics, San Jose, California, 2014, Technical Digest (Optical Society of America, Washington, DC 2014), paper SM4O.4.
Purnawirman, E. Shah Hosseini, M. Moresco, Z. Su, E. Timurdogan, A. Baldycheva, J. D. B. Bradley, J. Sun, T. N. Adam, G. Leake, D. Coolbaugh, and M. R. Watts, “Integrated Al2O3:Er3+ DFB laser for temperature control free operation with silicon nitride ring filter,” Conference on Lasers and Electro-Optics, San Jose, California, 2014, Technical Digest (Optical Society of America, Washington, DC 2014), paper SM4G.5.
K. Shtyrkova, C. Evans, O. Reshef, J. D. B. Bradley, M. G. Moebius, E. Mazur, and E. Ippen, “Third harmonic generation in polycrystalline anatase titanium dioxide nanowaveguides,” Conference on Lasers and Electro-Optics, San Jose, California, 2014, Technical Digest (Optical Society of America, Washington, DC 2014), paper SW3I.6.
Purnawirman, E. Shah Hosseini, A. Baldycheva, J. Sun, J. D. B. Bradley, T. N. Adam, G. Leake, D. Coolbaugh, and M. R. Watts, “Erbium-doped laser with multi-segmented silicon nitride structure,” Optical Fiber Communication Conference, San Francisco, California, 2014, Technical Digest (Optical Society of America, Washington, DC 2014), paper W4E.5.
J. D. B. Bradley, Purnawirman, E. Shah Hosseini, J. Sun, T. N. Adam, G. Leake, D. Coolbaugh, and M. R. Watts, “C- and L-band erbium-doped aluminum oxide lasers with silicon nitride distributed Bragg reflector cavities,” Conference on Lasers and Electro-Optics, San Jose, California, 2013, Technical Digest (Optical Society of America, Washington, DC 2013), paper CF1I.4.
Purnawirman, E. Shah Hosseini, J. D. B. Bradley, J. Sun, G. Leake, T. N. Adam, D. Coolbaugh, and M. R. Watts, “CMOS compatible high power erbium doped distributed feedback lasers,” Integrated Photonics Research, Silicon and Nanophotonics, Rio Grande, Puerto Rico, 2013, Technical Digest (Optical Society of America, Washington, DC 2013), paper IM1A.3.
J. Sun, Purnawirman, E. Shah Hosseini, J. D. B. Bradley, T. N. Adam, G. Leake, D. Coolbaugh, and M. R. Watts, “Integrated quarter-wave phase-shift Bragg grating array with equalized channel spacing,” Integrated Photonics Research, Silicon and Nanophotonics, Rio Grande, Puerto Rico, 2013, Technical Digest (Optical Society of America, Washington, DC 2013), paper CF1I.4.
C. C. Evans, K. Shtyrkova, J. D. B. Bradley, E. Ippen, and E. Mazur, "Spectral broadening of femtosecond pulses in polycrystalline anatase titanium dioxide waveguides" Nonlinear Photonics, Advanced Photonics Congress, Colorado Springs, Colorado, 2012. Postdeadline Paper.
C. C. Evans, J. D. B. Bradley, J. T. Choy, O. Reshef, P. B. Deotare, M. Lončar, and E. Mazur, "Submicrometer-width TiO2 waveguides", Conference on Lasers and Electro-Optics, San Jose, California, 2012, Technical Digest (Optical Society of America, Washington, DC 2012), paper CM3M.6.
C. C. Evans, J. D. B. Bradley, E. A. Martí-Panameño, and E. Mazur, "Simultaneous multiphoton absorption in rutile (TiO2) across the half-bandgap,” LASE, Photonics West, San Francisco, California, 2012, Technical Abstract Summaries, Conference "Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI", Session 9, paper 8240-41.
Y. Tanaka, J. D. B. Bradley, E. Mazur, and M. Obara, "Template-assisted metal nanoneedle/nanoprotrusion array fabrication at a sub-diffraction-limited scale,” LASE, Photonics West, San Francisco, California, 2012, Technical Abstract Summaries, Conference “Laser Applications in Microelectronic and Optoelectronic Manufacturing XVII,” Session 4, paper 8243-17.
J. D. B. Bradley, C. C. Evans, J. T. Choy, O. Reshef, P. B. Deotare, M. Lončar, and E. Mazur, “TiO2 nanophotonic waveguides for on-chip nonlinear optical devices,” OPTO, Photonics West, San Francisco, California, 2012, Technical Abstract Summaries, Conference “Integrated Optics: Devices, Materials, and Technologies XVI,” Session 1, paper 8264-04.
J. T. Choy, J. D. B. Bradley, I. B. Burgess, P. B. Deotare, C. C. Evans, E. Mazur, and M. Lončar, "Integrated optical resonators in titanium dioxide thin films for the visible wavelengths," Materials Research Society Fall Meeting and Exhibit, Boston, MA, 2011, Symposium M "Oxide Semiconductors-Defects, Growth, and Device Fabrication,” paper M3.15.
L. Agazzi, J. D. B. Bradley, K. Wörhoff, and M. Pollnau, "Al2O3:Er3+ amplifiers: The impact of fast spectroscopic quenching processes", International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim, Sydney, Australia, 2011, Conference Handbook, p. 65, paper 5420-CT-5.
C. C. Evans, J. D. B. Bradley, E. A. Martí-Panameño, and E. Mazur, "TiO2 as a platform for all-optical switching," 22nd General Congress of the International Commission for Optics, Puebla, Mexico, 2011, Symposium OIS "Optical Interaction Science,” paper OIS6.
C. C. Evans, J. D. Barranco Cruz, J. D. B. Bradley, L. C. Gómez Pavón, E. Mazur, and E. A. Martí-Panameño, "Discriminating thin film versus substrate contributions in z-scan measurements," 22nd General Congress of the International Commission for Optics, Puebla, Mexico, 2011, Symposium OIS "Optical Interaction Science,” paper OIS4.
L. Agazzi, J. D. B. Bradley, J. Yang, F. Ay, K. Wörhoff, and M. Pollnau, "Er3+- and Nd3+-doped Al2O3 amplifiers on a silicon chip", International Laser Physics Workshop, Sarajevo, Bosnia and Herzegovina, 2011, Program, p. 32, paper 4.2.5.
L. Agazzi, J. D. B. Bradley, F. Ay, K. Wörhoff, and M. Pollnau, "Presence of fast quenching mechanisms in Al2O3:Er3+", International Conference on Luminescence, Ann Arbor, Michigan, 2011, Conference Program, p. 10, paper MH6.
M. Pollnau, E. H. Bernhardi, J. D. B. Bradley, R. M. de Ridder, K. Wörhoff, J. Yang, M. B. J. Diemeer, and A. Driessen, "Rare-earth-ion-doped lasers integrated on a silicon chip", Joint Annual Meeting of the Swiss Physical Society and Austrian Physical Society, Lausanne, Switzerland, 2011, in Bulletin SPG/SSP, Vol. 28, 2011, paper 214.
C. C. Evans, J. D. B. Bradley, F. Parsy, K. C. Phillips, R. Senaratne, E. A. Marti, and E. Mazur, "Thermally managed Z-scan measurements of titanium dioxide thin films,” OPTO, Photonics West, San Francisco, California, 2011, Technical Abstract Summaries, Conference " Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications X", Session 12, paper 7917-54.
R. Senaratne, C. C. Evans, F. Parsy, K. C. Phillips, J. D. B. Bradley, E. A. Marti, and E. Mazur, "Effects of annealing on optical properties of TiO2 planar waveguides,” OPTO, Photonics West, San Francisco, California, 2011, Technical Abstract Summaries, Conference "Integrated Optics: Devices, Materials, and Technologies XV", Session 6, paper 7940-41.
F. Parsy, J. D. B. Bradley, C. C. Evans, K. C. Phillips, R. Senaratne, E. A. Marti, and E. Mazur, "Impact of sputtering parameters on titanium dioxide thin films for nonlinear nanophotonics,” OPTO, Photonics West, San Francisco, California, 2011, Technical Abstract Summaries, Conference " Oxide-based Materials and Devices II", Session 1, paper 7941-3.
A. P. Knights, J. D. B. Bradley, O. Hulko, D. V. Stevanovic, C. J. Edwards, A. Kallis, P. G. Coleman, I. F. Crowe, M. P. Halsall, and R. M. Gwilliam, “Probing the formation of silicon nano-crystals (Si-Ncs) using variable energy positron annihilation spectroscopy,” Proceedings of the 12th International Workshop on Slow Positron Beam Techniques, Journal of Physics: Conference Series 262, 012031 (2011).
J. D. B. Bradley, C. C. Evans, F. Parsy, K. C. Phillips, R. Senaratne, E. Marti, and E. Mazur, "Low-loss TiO2 planar waveguides for nanophotonic applications," The 23rd Annual Meeting of the IEEE Photonics Society, Denver, Colorado, 2010, paper TuAA 1.
M. Pollnau, J. D. B. Bradley, J. Yang, E. H. Bernhardi, R. M. de Ridder, and K. Wörhoff, "Rare-earth-ion doped waveguide amplifiers and lasers in alumina and polymers," Frontiers in Optics/Laser Science, Annual Meeting of the Optical Society of America, Rochester, New York, 2010, paper FWD1. Invited Paper.
M. Pollnau, J. D. B. Bradley, E. H. Bernhardi, F. Ay, R. M. de Ridder, and K. Wörhoff, "Integrated amplifiers and lasers in Al2O3:Er3+ thin films on a silicon chip," IV International Workshop on Photonic and Electronic Materials, San Sebastian, Spain, 2010, Scientific Program and Workshop Abstracts, p. 44. Invited Paper.
L. Agazzi, J. D. B. Bradley, F. Ay, K. Wörhoff, and M. Pollnau, “Understanding Al2O3:Er3+ device performance,” Proceedings of the 2010 Annual Symposium of the IEEE Photonics Benelux Chapter, Delft, The Netherlands, 2010, pp. 261–264.
C. C. Evans, J. D. B. Bradley, F. Parsy, J. T. Choy, P. B. Deotare, E. Marti, M. Lončar and E. Mazur, “TiO2 as a material platform for all-optical logic,” Proceedings of the Keio & Harvard Workshop, Cambridge, Massachusetts, 2010.
E. H. Bernhardi, K. Wörhoff, J. D. B. Bradley, R. M. de Ridder, and M. Pollnau, "Integrated Al2O3:Er3+ microring and distributed feedback lasers on silicon," European Materials Research Society Meeting, Strasbourg, France, 2010, Symposium K "Rare Earth Doped Materials for Optical Based Technologies", Session 1, Paper 4.
L. Agazzi, J. D. B. Bradley, G. Roelkens, R. Baets, F. Ay, K. Wörhoff, and M. Pollnau, "Wafer-scale monolithic integration of Al2O3:Er amplifiers with Si waveguides," Conference on Lasers and Electro-Optics, San Jose, California, 2010, Technical Digest (Optical Society of America, Washington, DC 2010), paper JWA92.
J. D. B. Bradley, M. Costa e Silva, M. Gay, L. Bramerie, A. Driessen, K. Wörhoff, J. C. Simon, and M. Pollnau, "170 Gbit/s transmission in Al2O3:Er integrated amplifiers", Conference on Lasers and Electro-Optics, San Jose, California, 2010, Technical Digest (Optical Society of America, Washington, DC 2010), paper ATuB5.
F. Ay, E. H. Bernhardi, L. Agazzi, J. D. B. Bradley, K. Wörhoff, M. Pollnau, and R. M. de Ridder, "Characterization of Bragg gratings in Al2O3 waveguides fabricated by focused ion beam milling and laser interference lithography," Conference on Lasers and Electro-Optics, San Jose, California, 2010, Technical Digest (Optical Society of America, Washington, DC 2010), paper CMQ4.
J. D. B. Bradley, R. Stoffer, L. Agazzi, F. Ay, K. Wörhoff, and M. Pollnau, "Widely wavelength-selective integrated ring laser in Al2O3:Er," Conference on Lasers and Electro-Optics, San Jose, California, 2010, Technical Digest (Optical Society of America, Washington, DC 2010), paper CMQ2.
L. Agazzi, J. D. B. Bradley, F. Ay, K. Wörhoff, and M. Pollnau, "Al2O3:Er3+ waveguide amplifiers at 1.5 μm," European Conference on Integrated Optics, Cambridge, United Kingdom, 2010, paper ThE2.
J. D. B. Bradley, L. Agazzi, F. Ay, K. Wörhoff, M. Pollnau, and R. Stoffer, "Widely wavelength-selective Al2O3:Er3+ ring laser," European Conference on Integrated Optics, Cambridge, United Kingdom, 2010, paper ThE3.
M. Pollnau, J. D. B. Bradley, F. Ay, E. Bernhardi, R. M. de Ridder, and K. Wörhoff, "On-chip integrated lasers in Al2O3:Er on silicon," Optoelectronic Integrated Circuits XII, L.A. Eldada and E.H. Lee, eds., Proceedings of the SPIE, Vol. 7605, 76050M (2010). Invited Paper.
K. Wörhoff, J. D. B. Bradley, L. Agazzi, and M. Pollnau, "Rare-earth-ion-doped Al2O3 for integrated optical amplification," Integrated Optics: Devices, Materials, and technologies XIV, J.E. Broquin and C.M. Greiner, eds., Proceedings of the SPIE, Vol. 7604, 760408 (2010). Invited Paper.
J. D. B. Bradley, L. Agazzi, F. Ay, K. Wörhoff, and M. Pollnau, "Al2O3:Er3+ as a broad gain medium for 1.53-μm integrated optical applications", Proceedings of the 2009 Annual Symposium of the IEEE Photonics Benelux Chapter, Brussels, Belgium, 2009, pp. 13–16.
M. Pollnau, J. D. B. Bradley, L. Agazzi, E. Bernhardi, F. Ay, K. Wörhoff, and R. M. de Ridder, "Al2O3:Er3+ as a new platform for active integrated optics", International Conference on Transparent Optical Networks, São Miguel, Azores, Portugal, 2009, paper We.D2.1. Invited Paper.
F. Ay, L. J. Kauppinen, J. D. B. Bradley, K. Wörhoff, R. M. de Ridder, and M. Pollnau, "Focused ion beam milled on-chip resonator nanostructures for applications in rare-earth-ion-doped Al2O3 active waveguides," The 22nd Annual Meeting of the IEEE Photonics Society, Antalya, Turkey, 2009, paper TuDD 5.
J. D. B. Bradley, L. Agazzi, F. Ay, K. Wörhoff, and M. Pollnau, "High-performance Al2O3:Er3+ integrated optical amplifiers", International Laser Physics Workshop, Barcelona, Spain, 2009, Book of Abstracts, paper 8.3.5.
J. D. B. Bradley, L. Agazzi, D. Geskus, F. Ay, K. Wörhoff, and M. Pollnau, "2.0 dB/cm gain in an Al2O3:Er3+ waveguide on silicon," Conference on Lasers and Electro-Optics, Baltimore, Maryland, 2009, Technical Digest (Optical Society of America, Washington, DC 2009), paper CMW5.
J. D. B. Bradley, M. Gay, J. C. Simon, K. Wörhoff, and M. Pollnau, "40 Gbit/s transmission in a silicon-compatible Al2O3:Er3+ integrated optical amplifier," Conference on Lasers and Electro-Optics Europe, Munich, Germany, 2009, Conference Digest, paper CI4.3.
F. Ay, J. D. B. Bradley, K. Wörhoff, R. M. de Ridder, and M. Pollnau, "Optical performance investigation of focused ion beam nanostructured integrated Fabry-Perot microcavities in Al2O3," Conference on Lasers and Electro-Optics Europe, Munich, Germany, 2009, Conference Digest, paper CK.P.1.
J. D. B. Bradley, L. Agazzi, D. Geskus, F. Ay, K. Wörhoff, and M. Pollnau, "Higher gain in 977-nm-pumped Al2O3:Er3+ integrated optical amplifiers," Conference on Lasers and Electro-Optics Europe, Munich, Germany, 2009, Conference Digest, paper CE.4.
L. Agazzi, J. D. B. Bradley, F. Ay, A. Kahn, H. Scheife, G. Huber, R. M. de Ridder, K. Wörhoff, and M. Pollnau, "Energy migration governs upconversion losses in Er3+-doped integrated amplifiers," Conference on Lasers and Electro-Optics Europe, Munich, Germany, 2009, Conference Digest, paper CE.3.
F. Ay, J. D. B. Bradley, R. M. de Ridder, K. Wörhoff, and M. Pollnau, "Bragg gratings in Al2O3 channel waveguides by focused ion beam milling," Proceedings of the Thirteenth Annual Symposium of the IEEE/LEOS Benelux Chapter, Enschede, The Netherlands, 2008, pp. 215–217.
J. D. B. Bradley, L. Agazzi, D. Geskus, F. Ay, K. Wörhoff, M. Pollnau, and W. M. Arnoldbik, "Enhanced gain in Er-doped Al2O3 channel waveguide amplifiers," Proceedings of the Thirteenth Annual Symposium of the IEEE/LEOS Benelux Chapter, Enschede, The Netherlands, 2008, pp. 131–134.
L. Agazzi, J. D. B. Bradley, F. Ay, A. Kahn, H. Scheife, K. Petermann, G. Huber, R. M. de Ridder, K. Wörhoff, and M. Pollnau, "Upconversion spectroscopy of Al2O3:Er3+," Proceedings of the Thirteenth Annual Symposium of the IEEE/LEOS Benelux Chapter, Enschede, The Netherlands, 2008, pp. 51–53.
F. Ay, A. Uranga, J. D. B. Bradley, K. Wörhoff, R. M. de Ridder, and M. Pollnau, "Focused ion beam nano-structuring of Bragg gratings in Al2O3 channel waveguides," Proceedings of the First International Workshop on FIB for Photonics, R.M. de Ridder, F. Ay, and L.J. Kauppinen, eds. (University of Twente, Enschede, 2008), pp. 48–50.
K. Wörhoff, J. D. B. Bradley, F. Ay, D. Geskus, T. Blauwendraat, and M. Pollnau, "Optimization of Al2O3:Er3+ waveguide technology for active integrated optical devices," Silicon Photonics and Photonic Integrated Circuits, G.C. Righini, S.K. Honkanen, L. Pavesi, and L. Vivien, eds., Proceedings of the SPIE, Vol. 6996, 699618 (2008).
A. Kahn, H. Kühn, S. Heinrich, T. Gün, F. Tellkamp, K. Petermann, J. D. B. Bradley, F. Ay, K. Wörhoff, M. Pollnau, Y. Kuzminykh, Y. Luo, P. Hoffmann, and G. Huber, "In-band pumping of epitaxially grown Er:(Gd, Lu)2O3 waveguides for active integrated optical devices," EPS-QEOD Europhoton Conference on Solid-State and Fiber Coherent Light Sources, Paris, France, 2008, Conference Digest, paper THoD.2.
K. Wörhoff, J. D. B. Bradley, L. Agazzi, D. Geskus, F. Ay, A. Kahn, H. Scheife, K. Petermann, G. Huber, and M. Pollnau, "Energy-transfer upconversion in Al2O3:Er3+ thin layers," International Workshop on Advanced Spectroscopy and Optical Materials, Gdansk, Poland, 2008, Abstracts, paper 6-O-3.
L. Agazzi, J. D. B. Bradley, F. Ay, K. Wörhoff, and M. Pollnau, "Spectroscopy and gain in Al2O3:Er waveguides," International Conference on Luminescence, Lyon, France, 2008, Book of Abstracts, paper TuA2-O2.
F. Ay, A. Uranga, J. D. B. Bradley, K. Wörhoff, R. M. de Ridder, and M. Pollnau, "Focused ion beam nano-structuring of Bragg gratings in Al2O3 channel waveguides," The FIB for Photonics Workshop, Eindhoven, The Netherlands, 2008, Session 4, Paper 2.
J. D. B. Bradley, L. Agazzi, D. Geskus, T. Blauwendraat, F. Ay, K. Wörhoff, and M. Pollnau, "Investigation of optical gain in Al2O3:Er channel waveguide amplifiers," Conference on Lasers and Electro-Optics, San Jose, California, 2008, Technical Digest (Optical Society of America, Washington, DC 2008), paper JTuA30.
D. Geskus, J. D. B. Bradley, S. Aravazhi, K. Wörhoff, and M. Pollnau, "Poor man's channel waveguide laser: KY(WO4)2:Yb," Conference on Lasers and Electro-Optics, San Jose, California, 2008, Technical Digest (Optical Society of America, Washington, DC 2008), paper CTuS4.
A. Kahn, T. Gün, B. Ileri, H. Kühn, K. Petermann, G. Huber, J. D. B. Bradley, F. Ay, K. Wörhoff, M. Pollnau, Y. Luo, and P. Hoffmann, "Mono-crystalline rare earth doped (Gd, Lu)2O3 waveguiding films produced by pulsed laser deposition and structured by reactive ion etching," Conference on Lasers and Electro-Optics, San Jose, California, 2008, Technical Digest (Optical Society of America, Washington, DC 2008), paper CTuS1.
K. Wörhoff, J. D. B. Bradley, F. Ay, D. Geskus, T. Blauwendraat, and M. Pollnau, "Optimization of Al2O3:Er waveguide technology for active integrated optical devices," Photonics Europe, Strasbourg, France, 2008, Technical Programme, Conference "Silicon Photonics and Photonic Integrated Circuits", Session 10 "Active Waveguides and Devices II", p. 43, paper 6996-43.
L. Agazzi, J. D. B. Bradley, F. Ay, K. Wörhoff, and M. Pollnau, "Al2O3:Er waveguide amplifiers for Si-technology compatible integrated optical applications," ePIXnet Spring School on Technology for Photonics Integration, Portoferraio/Elba, Italy, 2008, Book of Abstracts, p. 66.
D. Geskus, J. D. B. Bradley, S. Aravazhi, K. Wörhoff, and M. Pollnau, "Fibre top-loaded channel waveguide laser in KY(WO4)2:Yb3+," Proceedings of the Annual Workshop of the IEEE/LEOS Benelux Chapter, Brussels, Belgium, 2008 (Vrije Universiteit Brussel, Brussels, 2008), pp. 13–14.
J. D. B. Bradley, L. Agazzi, D. Geskus, F. Ay, K. Wörhoff, and M. Pollnau, "Reactively co-sputtered Al2O3:Er3+ for active photonic devices," Proceedings of the Annual Workshop of the IEEE/LEOS Benelux Chapter, Brussels, Belgium, 2008 (Vrije Universiteit Brussel, Brussels, 2008), pp. 9–10.
J. D. B. Bradley, D. Geskus, T. Blauwendraat, F. Ay, K. Wörhoff, M. Pollnau, A. Kahn, H. Scheife, K. Petermann, and G. Huber, "Growth, micro-structuring, spectroscopy, and optical gain in as-deposited Al2O3:Er waveguides," Advanced Solid-State Photonics Conference, Nara, Japan, 2008, paper WB10.
J. D. B. Bradley, D. Geskus, T. Blauwendraat, F. Ay, K. Wörhoff, and M. Pollnau, "Optimized deposition and structuring of reactively co-sputtered Al2O3:Er3+ waveguide layers with net optical gain," Proceedings of the Twelfth Annual Symposium of the IEEE/LEOS Benelux Chapter, Brussels, Belgium, 2007, pp. 107–110.
A. Uranga, F. Ay, J. D. B. Bradley, R. M. de Ridder, K. Wörhoff, and M. Pollnau, "Focused ion beam nano-structuring of photonic Bragg gratings in Al2O3 waveguides," Proceedings of the Twelfth Annual Symposium of the IEEE/LEOS Benelux Chapter, Brussels, Belgium, 2007, pp. 247–250.
D. Geskus, J. D. B. Bradley, S. Aravazhi, K. Wörhoff, and M. Pollnau, "Progress on micro-structured KY(WO4)2 waveguides for optically active devices," Proceedings of the Twelfth Annual Symposium of the IEEE/LEOS Benelux Chapter, Brussels, Belgium, 2007, pp. 103–106.
J. D. B. Bradley, F. Ay, T. Blauwendraat, K. Wörhoff, and M. Pollnau, "Rare-earth-ion-doped Al2O3 waveguides for active integrated optical devices," Proceedings of the International Conference on Lasers, Applications, and Technologies, Minsk, Belarus, 2007, V.A. Orlovich, V. Panchenko, and I.A. Scherbakov, eds., Proceedings of the SPIE, Vol. 6731, 67310A (2007).
F. Ay, J. D. B. Bradley, W. C. L. Hopman, V. J. Gadgil, R. M. de Ridder, K. Wörhoff, and M. Pollnau, "Focused-ion-beam nano-structuring of Al2O3 dielectric layers for photonic applications," International Conference on Micro- and Nano-Engineering, Copenhagen, Denmark, 2007, Book of Abstracts, pp. 627–628.
J. D. B. Bradley, F. Ay, K. Wörhoff, and M. Pollnau, "Reactive ion etching of low-loss channel waveguides in Al2O3 and Y2O3 layers," International Conference on Micro- and Nano-Engineering, Copenhagen, Denmark, 2007, Book of Abstracts, pp. 375-376.
F. Ay, J. D. B. Bradley, D. Geskus, K. Wörhoff, and M. Pollnau, "Towards rare-earth-ion-doped Al2O3 active integrated optical devices," International Symposium on Modern Optics and its Applications, Bandung, Indonesia, 2007, Program and Abstracts, pp. 63–66. Invited Paper.
J. D. B. Bradley, F. Ay, K. Wörhoff, and M. Pollnau, "Low-loss rib waveguides in Al2O3 layers for active integrated optical devices," Conference on Lasers and Electro-Optics Europe, Munich, Germany, 2007, Conference Digest, paper CE7-6-THU.
F. Ay, J. D. B. Bradley, T. Blauwendraat, K. Wörhoff, and M. Pollnau, "Rare-earth-ion-doped Al2O3 waveguides for active integrated optical devices," International Conference on Lasers, Applications, and Technologies, Minsk, Belarus, 2007, Conference Program, paper L01/II-3.
K. Wörhoff, J. D. B. Bradley, F. Ay, and M. Pollnau, "Low-loss Al2O3 waveguides for active integrated optics," Conference on Lasers and Electro-Optics, Baltimore, Maryland, 2007, Technical Digest (Optical Society of America, Washington, DC 2007), paper CMW5.
J. D. B. Bradley, F. Ay, K. Wörhoff, and M. Pollnau, "Al2O3 and Y2O3 waveguides as building blocks for active integrated photonic devices," ePIXnet Winter School on Applications of Photonic Integration, Pontresina, Switzerland, 2007.
K. Wörhoff, J. D. B. Bradley, F. Ay, D. Geskus, S. Aravazhi, and M. Pollnau, "Actively doped dielectric materials for on-chip integrated light sources," Fotonica Evenement, Den Haag, The Netherlands, 2007.
J. D. B. Bradley, F. Ay, K. Wörhoff, and M. Pollnau, "Al2O3 and Y2O3 thin films for active integrated optical waveguide devices," Proceedings of the Eleventh Annual Symposium of the IEEE/LEOS Benelux Chapter, Eindhoven, The Netherlands, 2006, pp. 113–116.
J. D. B. Bradley, F. Ay, K. Wörhoff, and M. Pollnau, "Reactive ion etching of Y2O3 films applying F-, Cl-, and Cl/Br-based inductively coupled plasmas," ECS Transactions 3(11), 117–124 (2006).
F. Ay, K. Wörhoff, J. Bradley, and M. Pollnau, "Reliable fabrication of low-loss Al2O3 waveguides for active integrated optics," EPS-QEOD Europhoton Conference on Solid-State and Fiber Coherent Light Sources, Pisa, Italy, 2006, Europhysics Conference Abstracts, Vol. 30J, paper TuC2.
A. P. Knights, J. D. B. Bradley, S. H. Gou, and P. E. Jessop, “Monolithically integrated photodetectors for optical signal monitoring in silicon waveguides,” Silicon Photonics, J. A. Kubby and G. T. Reed, eds., Proceedings of the SPIE, vol. 6125, pp. 61250J (2006).
J. D. B. Bradley, P. E. Jessop, and A. P. Knights, “Infra-red photo-detectors monolithically integrated with silicon-based photonic circuits,” Proceedings of the Materials Research Society Spring Meeting 2005: Materials, Integration and Technology for Monolithic Instruments (MRS, San Francisco, 2005), vol. 869, pp. 65–70.
Invited Presentations
R. Wang and J. D. B. Bradley, “Active and nonlinear tellurite glass photonic devices integrated on silicon nitride and silicon-on-insulator platforms; Canadian Semiconductor Science and Technology Conference, University of Saskatchewan, Saskatoon, Canada, 28 July – 1 August 2019.
J. D. B. Bradley, H. C. Frankis, K. Miarabbas Kiani, D. B. Bonneville, D. Su, R. Mateman, A. Leinse, and A. P. Knights, “Tellurite glass devices for silicon-based photonic integrated circuits,” Photonics & Electromagnetics Research Symposium (PIERS 2019), Rome, Italy, 17–20 June 2019.
J. D. B. Bradley, “Integration of novel materials in silicon nanophotonics by additive processing,” Photonics North, Quebec City, Canada, 21–23 May 2019.
J. D. B. Bradley, H. C. Frankis, and H. Mbonde, “Silicon nitride integrated photonics,” Seminar, ” SiEPIC Silicon Photonics Workshop, UBC, Vancouver, Canada, 16 May 2019.
J. D. B. Bradley, "Opportunities for glass materials and devices in silicon photonics,” presented at Photonics West, San Francisco, California, 5 February 2019.
J. D. B. Bradley, “Rare-earth-doped light-emitting thin films and photonic devices on silicon,” Department of Physics Seminar, Western University, London, Canada, 24 January, 2019.
J. D. B. Bradley, “Rare-earth-doped light-emitting thin films and photonic devices on silicon,” Seminar, IFN-CNR Research Institute, Trento, Italy, 11–12 June 2018.
J. D. B. Bradley, “Rare earth microcavity lasers for silicon nanophotonics,” The 14th International Ceramics Congress (CIMTEC), Perugia, Italy, 4–8 June 2018.
J. D. B. Bradley, “Rare-earth-doped light-emitting thin films and photonic devices on silicon,” Emerging Technologies 2018, Whistler, BC, Canada, 9–11 May 2018.
J. D. B. Bradley, “On-chip rare earth amplifiers and lasers for silicon photonics,” Seminar, IFAC-CNR Institute of Applied Physics, Florence, Italy, 5 December, 2017.
J. D. B. Bradley, “Microlasers on silicon chips based on high-Q rare-earth-doped aluminum oxide micro-trench resonators,” Photoluminescence in Rare Earths: Photonic Materials and Devices (PRE'17), Rome, Italy, November 2017.
J. D. B. Bradley, “Rare-earth-doped aluminum oxide microcavity lasers integrated on silicon chips,” Photonics North, Ottawa, Canada, 2017.
J. D. B. Bradley, “Integrated rare earth amplifiers and lasers for silicon photonics,” Department of Physics Seminar, University of Ottawa, Ottawa, Canada, 19 April 2017.
J. D. B. Bradley, “Rare-earth-doped aluminum oxide amplifiers and lasers for advanced silicon photonic microsystems,” Lumentum, Ottawa, Canada, 31 March 2017.
J. D. B. Bradley, “Rare earth doped light emitting thin films for silicon photonics,” 231st Electrochemical Society (ECS) Meeting, New Orleans, USA,2017, ECS Meeting Abstracts, abstract MA2017-01 1013.
J. D. B. Bradley, Z. Su, H. C. Frankis, E. S. Magden, N. Li, M. Byrd, Purnawirman, E. Shah Hosseini, T. N. Adam, G. Leake, D. Coolbaugh, and M. R. Watts, "Microlasers based on high-Q rare-earth-doped aluminum oxide resonators on silicon,” presented at Photonics West, San Francisco, California, January 2017.
J. D. B. Bradley, “Rare-earth-doped aluminum oxide amplifiers and lasers for advanced silicon photonic microsystems,” presented at Photonics North, Quebec City, Canada, May 2016.
J. D. B. Bradley, Purnawirman, E. Hosseini, Z. Su, E. S. Magden, N. Li, G. Singh, J. Sun, T. N. Adam, G. Leake, D. Coolbaugh, and M. R. Watts, “On-chip and silicon-compatible Er-doped aluminum oxide lasers,” presented at the 229th Electrochemical Society (ECS) Meeting, San Diego, USA, May 2016.
J. D. B. Bradley, “Lighting up silicon: Rare-earth-doped glass lasers integrated on silicon photonic chips,” Department of Physics Colloquium, City College of New York, New York, Feb. 5, 2014.
Book Chapters
J. D. B. Bradley, R. Wang, H. C. Frankis, D. B. Bonneville, K. Miarabbas Kiani, and H. M. Mbonde, “Silicon Nitride Integrated Optics,” to appear in Integrated Optics: Recent Advances and Prospects, edited by Giancarlo C. Righini and Maurizio Ferrari (The Institution of Engineering and Technology, London, 2020), pp. 1–50.
A. P. Knights and J. D. B. Bradley, “Optical Detection Technologies for Silicon Photonics,” in Silicon Photonics: The State of the Art, edited by Graham T. Reed (John Wiley & Sons, Ltd., Chichester, 2008), pp. 191–227.