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Research Project: MEMPHIS/APD&SPC: Advanced Photonic Devices and Sensor Photonic Crystals
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2015

Bernhardi, E.H. and Pollnau, M. (2015) Narrow-linewidth lasers on a silicon chip. In: Nano-Structures for Optics and Photonics. NATO Science for Peace and Security Series B: Physics and Biophysics. Springer, Dordrecht, pp. 237-248. ISBN 978-94-017-9132-8

2014

Bernhardi, E.H. and Agazzi, L. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2014) Spectroscopy and ultra-narrow-linewidth lasers in rare-earth-doped amorphous Al2O3 waveguides on a silicon chip In: International Conference on Luminescence, ICL 2014, 13-18 July 2014, Wroclaw, Poland. Paper O-25. Institute of Low Temperature and Structure Research, Polish Academy of Sciences. ISBN not assigned
Bernhardi, E.H. and van der Werf, K.O. and Hollink, A.J.F. and Wörhoff, K. and Subramaniam, V. and Pollnau, M. (2014) Intra-laser-cavity sensing with a dual-wavelength distributed-feedback laser. In: 17th European Conference on Integrated Optics, 24-27 June 2014, Nice, France. Paper We4bR4. CNRS - University Nice Sophia Antipolis. ISBN not assigned
Eichhorn, M. and Pollnau, M. (2014) Coherence manifestation in a continuous-wave laser. In: Laser Sources and Applications II, Photonics Europe, 14-17 Apr 2014, Brussels, Belgium. Paper 91350A. Proceedings of the SPIE 9135 (91350A). SPIE. ISBN 978-1-62841-083-9
Pollnau, M. (2014) Dielectric waveguide amplifiers and lasers. (Invited) In: Proceedings of PHOTOPTICS 2014 - 2nd International Conference on Photonics, Optics and Laser Technology, 7-9 Jan 2014, Lisbon, Portugal. Paper IS-11. Proceedings of PHOTOPTICS 2. INSTICC - Institute for Systems and Technologies for Information, Control and Communication. ISBN 978-989-758-008-6
Pollnau, M. (2014) Rare-earth-ion-doped dielectric waveguides on a silicon chip: Fabrication, spectroscopy, amplification, and lasing. (Invited) In: International Workshop on Photoluminescence in Rare-Earths: Photonic Materials and Devices, 13-16 May 2014, San Sebastian, Spain. Paper I5. Materials Physics Center and Donostia International Physics Center, San Sebastian. ISBN not assigned
Pollnau, M. (2014) Ultranarrow-linewidth lasers on a silicon chip and their applications. (Invited) In: 16th International Conference on Transparent Optical Networks, ICTON 2014, 6-10 July 2014, Graz, Austria. Paper Mo.B.1. IEEE Photonics Society. ISBN 978-1-4799-5601-2

2013

Agazzi, L. and Wörhoff, K. and Kahn, A. and Fechner, M. and Huber, G. and Pollnau, M. (2013) Spectroscopy of upper energy levels in an Er3+-doped amorphous oxide Journal of the Optical Society of America B (Optical physics), 30 (3). pp. 663-677. ISSN 0740-3224 *** ISI Impact 1,731 ***
Agazzi, L. and Wörhoff, K. and Pollnau, M. (2013) Energy-transfer-upconversion models, their applicability and breakdown in the presence of spectroscopically distinct ion classes: A case study in amorphous Al2O3:Er3+ Journal of physical chemistry C, 117 (13). pp. 6759-6776. ISSN 1932-7447 *** ISI Impact 4,509 ***
Ay, F. and Pollnau, M. (2013) Focused-ion-beam nano-structuring of photonic cavities in dielectric materials. (Invited) In: Energy Materials Nanotechnology East Meeting, 7-10 Sep 2013, Beijing, China. pp. 38-39. Institute of Semiconductors CAS. ISBN not assigned
Bernhardi, E.H. and de Ridder, R.M. and Wörhoff, K. and Pollnau, M. (2013) Rare-earth-ion-doped ultra-narrow-linewidth lasers on a silicon chip and applications to intra-laser-cavity optical sensing. In: Solid State Lasers XXII of LASE, SPIE Photonics West, 2-7 Feb 2013, San Francisco, CA. Paper 859909. Proceedings of the SPIE 8599. SPIE. ISBN 978-0-81949-368-2
Bernhardi, E.H. and van der Werf, K.O. and Hollink, A.J.F. and Wörhoff, K. and de Ridder, R.M. and Subramaniam, V. and Pollnau, M. (2013) On-chip microparticle detection and sizing using a dual-wavelength waveguide laser. In: Conference on Lasers and Electro-Optics, CLEO/Europe 2013, 12-16 May 2013, Munich, Germany. Paper CL-P.9. Online Conference Digest. European Physical Society. ISBN 978-1-4799-0594-2
Bernhardi, E.H. and van der Werf, K.O. and Hollink, A.J.F. and Wörhoff, K. and de Ridder, R.M. and Subramaniam, V. and Pollnau, M. (2013) Intra-laser-cavity microparticle sensing with a dual-wavelength distributed-feedback laser. Laser & Photonics Reviews, 7 (4). pp. 589-595. ISSN 1863-8880 *** ISI Impact 7,486 ***
Pollnau, M. (2013) Fundamental lessons on upconversion spectroscopy in rare-earth ions. (Invited) In: The Fourth International Workshop on Advanced Spectroscopy and Optical Materials, 14-19 July 2013, Gdansk, Poland. Page 18. Institute of Experimental Physics, Gdansk University. ISSN not assigned
Pollnau, M. (2013) Impurity-doped micro-lasers. (Invited) In: 2013 Energy Materials & Nanotechnology Meeting, EMN, 7-10 Dec 2013, Orlando, Florida. pp. 61-62. OAHOST. ISBN not assigned
Pollnau, M. (2013) A fresh look at continuous-wave lasers: How they really work! (Invited) In: Proceedings Doctoral Students Conference on Optics, 6-10 Oct 2013, Suhl, Germany. Page 8. Abbe School of Photonics, Universität Jena. ISBN not assigned
Pollnau, M. and Bernhardi, E.H. and Wörhoff, K. and de Ridder, R.M. (2013) Dual-wavelength narrow-linewidth lasers and their applications. (Invited) In: Advanced Solid-State Lasers Congress, 27 Oct - 01 Nov 2013, Paris, France. Paper ATu1A.6. Optical Society of America. ISBN 978-1-55752-982-4
Pollnau, M. and Eichhorn, M. (2013) Theory of lasing resonators: quality factor and line width. (Invited) In: XXI International Workshop on Optical Wave & Waveguide Theory and Numerical Modelling, 19-20 April 2013, Enschede, The Netherlands. Paper O-2.1. Proceedings. University of Twente. ISBN 978-90-365-3538-0

2012

Agazzi, L. and Bernhardi, E.H. and Wörhoff, K. and Pollnau, M. (2012) Impact of luminescence quenching on relaxation-oscillation frequency in solid-state lasers. Applied physics letters, 100 (1). 011109. ISSN 0003-6951 *** ISI Impact 3,142 ***
Agazzi, L. and Bernhardi, E.H. and Wörhoff, K. and Pollnau, M. (2012) Luminescence quenching in rare-earth-ion-doped Al2O3 lasers and its influence on relaxation oscillation frequency In: Advanced Solid-State Photonics, Poster Session 2, ASSP 2012, 29 Jan - 03 Feb 2012, San Diego, California, USA. AT4A.18. Optical Society of America. ISBN 978-1-55752-933-6
Agazzi, L. and Bernhardi, E.H. and Wörhoff, K. and Pollnau, M. (2012) The impact of lifetime quenching on relaxation oscillations in solid-state lasers. In: Conference on Lasers and Electro-Optics: Science and Innovations (CLEO: S and I), 6-11 May 2012, San José, California, USA. Paper CTu1D.6. Optical Society of America. ISBN 978-1-55752-943-5
Agazzi, L. and Wörhoff, K. and Pollnau, M. (2012) Fast quenching processes and their impact on 1.5-µm amplifier performance in Al2O3:Er3+ waveguides In: 16th European Conference on Integrated Optics, ECIO 2012, 18-20 Apr 2012, Sitges/Barcelona, Spain. Paper 84. Insitut de Ciències Fotòniques. ISBN not assigned
Agazzi, L. and Wörhoff, K. and Pollnau, M. (2012) Energy-transfer processes in Al2O3:Er3+ waveguide amplifiers In: Conference on Lasers and Electro-Optics: Science and Innovations (CLEO: S and I), 6-11 May 2012, San José, California, USA. Paper CF3A.3. Optical Society of America. ISBN 978-1-55752-943-5
Agazzi, L. and Wörhoff, K. and Pollnau, M. (2012) Upconversion spectroscopy of erbium in amorphous aluminum oxide microstructures. In: MRS Fall Meeting, 25-30 Nov 2012, Boston, Massachusetts. Page 362-Paper CC5.02. Program & Exhibit Guide and CD. Materials Research Society. ISBN not assigned
Ay, F. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2012) Focused-ion-beam nano-structuring of Al2O3 dielectric layers for photonic applications Journal of micromechanics and microengineering, 22 (10). 105008. ISSN 0960-1317 *** ISI Impact 1,768 ***
Bernhardi, E.H. (2012) Bragg-grating-based rare-earth-ion-doped channel waveguide lasers and their applications. PhD thesis, University of Twente. ISBN 978-90-365-3450-5
Bernhardi, E.H. and Khan, M.R.H. and Roeloffzen, C.G.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2012) Photonic generation of stable microwave signals from a dual-wavelength Al2O3:Yb3+ distributed-feedback waveguide laser Optics letters, 37 (2). pp. 181-183. ISSN 0146-9592 *** ISI Impact 3,040 ***
Bernhardi, E.H. and Khan, M.R.H. and Roeloffzen, C.G.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2012) Optical generation of microwave signals with a dual-phase-shifted Al2O3:Yb3+ distributed-feedback laser In: Conference on Lasers and Electro-Optics, 6-11 May 2012, San José, California, USA. Paper JW2A.36. Optical Society of America. ISBN 978-1-55752-943-5
Bernhardi, E.H. and Khan, M.R.H. and Roeloffzen, C.G.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2012) Photonic Generation of Microwave Signals Using Dual-Wavelength Distributed-Feedback Waveguide Lasers. In: 17th Annual Symposium of the IEEE Photonics Benelux Chapter, 29-30 Nov 2012, Mons, Belgium. pp. 101-104. Faculty of Engineering, University of Mons. ISBN 978-2-8052-0184-4
Bernhardi, E.H. and van der Werf, K.O. and Hollink, A.J.F. and Wörhoff, K. and de Ridder, R.M. and Subramaniam, V. and Pollnau, M. (2012) Evanescent-field intra-cavity sensing with a dual-wavelength distributed-feedback laser. In: Conference on Lasers and Electro-Optics: Science and Innovations (CLEO: S and I), 6-11 May 2012, San José, California, USA. Paper CM3B.5. Optical Society of America. ISBN 978-1-55752-943-5
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2012) Stable microwave generation in a dual-phase-shifted Al2O3:Yb3+ distributed-feedback waveguide laser In: Advanced Solid-State Photonics - Semiconductor and Waveguide Lasers, 29 Jan - 03 Feb 2012, San Diego, California, USA. AM5A.6. Optical Society of America. ISBN 978-1-55752-933-6
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2012) Waveguide Bragg gratings for the realization of high-quality monolithic cavities. (Invited) In: Conference on Bragg Gratings, Photosensitivity and Poling in Glass Waveguides (BGPP 2012), 17-21 Jun 2012, Colorado Springs, CO, USA. BM3D.1. Optical Society of America. ISBN not assigned
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. and Khan, M.R.H. and Roeloffzen, C.G.H. (2012) Dual-wavelength Al2O3:Yb3+ distributed feedback waveguide laser for microwave signal generation In: 16th European Conference on Integrated Optics, ECIO 2012, 18-20 Apr 2012, Sitges/Barcelona, Spain. Paper 69. Insitut de Ciències Fotòniques. ISBN not assigned
Eichhorn, M. and Pollnau, M. (2012) The Q-factor of a continuous-wave laser. In: Conference on Lasers and Electro-Optics: Science and Innovations (CLEO: S and I), 6-11 May 2012, San José, California, USA. Paper JW2A.29. Optical Society of America. ISBN 978-1-55752-943-5
Khan, M.R.H. and Bernhardi, E.H. and Marpaung, D.A.I. and Burla, M. and de Ridder, R.M. and Wörhoff, K. and Pollnau, M. and Roeloffzen, C.G.H. (2012) Highly stable microwave carrier generation using a dual-frequency distributed feedback laser. In: 2012 IEEE International Topical Meeting on Microwave Photonics (MWP2012), 11-14 Sept 2012, Noordwijk, The Netherlands. pp. 1-4. IEEE Photonics Society. ISBN 978-90-815839-2-3
Pollnau, M. and Bradley, J.D.B. and Bernhardi, E.H. and Agazzi, L. and Geskus, D. and van Dalfsen, K. and Yang, Jing and Ay, F. and Driessen, A. and García Blanco, S.M. and Wörhoff, K. and de Ridder, R.M. (2012) On-chip integrated amplifiers and lasers utilizing rare-earth-ion activation. (Invited) In: 8th Nanoscience and Nanotechnology Congress, Nano-TR-VIII, 25-29 Jun 2012, Ankara, Turkey. Page 6. Hacettepe University. ISBN not assigned
Pollnau, M. and van Dalfsen, K. and Bernhardi, E.H. and Geskus, D. and Wörhoff, K. and de Ridder, R.M. and García Blanco, S.M. (2012) Fabrication, operation, and applications of efficient dielectric waveguide lasers. (Invited) In: International Conference on Advanced Laser Technologies, ALT 2012, 2-6 Sep 2012, Thun, Switzerland. pp. 150-151. Bern University of Applied Sciences. ISBN not assigned
Pollnau, M. and Dongre, C. and Pham, V.S. and Bernhardi, E.H. and Wörhoff, K. and de Ridder, R.M. and Hoekstra, H.J.W.M. (2012) Optical bio-sensors in microfluidic chips. (Invited) In: MRS Fall Meeting, 25-30 Nov 2012, Boston, Massachusetts. Page 486-Paper XX9.01. Program & Exhibit Guide and CD. Materials Research Society. ISBN not assigned
Pollnau, M. and Geskus, D. and Bernhardi, E.H. and van Dalfsen, K. and Wörhoff, K. and de Ridder, R.M. (2012) Highly efficient solid-state waveguide lasers. (Invited) In: Advanced Solid-State Photonics, ASSP 2012 - Semiconductor and Waveguide Lasers, 29 Jan - 03 Feb 2012, San Diego, California, USA. AM5A.1. Optical Society of America. ISBN 978-1-55752-933-6

2011

Agazzi, L. and Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. (2011) Integrated Al2O3:Er3+ amplifiers: The impact of fast spectroscopic quenching processes In: International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim, 28 August - 1 September 2011, Sydney, Australia. Paper 5420-CT. Conference Handbook. Australian Optical Society. ISBN 978-0-9775657-7-1
Agazzi, L. and Bradley, J.D.B. and Wörhoff, K. and Pollnau, M. (2011) Presence of fast quenching mechanisms in Al2O3:Er3+ In: 16th International Conference on Luminescence & Optical Sperctroscopy of Condensed Matter, 26 Jun - 01 Jul 2011, Ann Arbor, MI. Paper MH6-p.10. Conference Program. University of Michigan. ISBN not assigned
Agazzi, L. and Bradley, J.D.B. and Yang, Jing and Ay, F. and Wörhoff, K. and Pollnau, M. (2011) Er3+- and Nd3+-doped Al2O3 amplifiers on a silicon chip In: International Laser Physics Workshop, 11-15 July 2011, Sarajevo, Bosnia and Herzegovina. Paper 4.2.5. L'Phys'11 Program. General Physics Institute, Moscow. ISBN not assigned
Agazzi, L. and Wörhoff, K. and Pollnau, M. (2011) Non-saturable absorption and its impact on amplifier performance in Al2O3:Er3+ In: Conference on Lasers and Electro-Optics, CLEO, 1-6 May 2011, Baltimore, Maryland, USA. JWA59. Optical Society of America. ISBN 978-1-55752-910-7
Agazzi, L. and Wörhoff, K. and Pollnau, M. (2011) Excitation quenching in Er3+-doped Al2O3 amplifiers In: Conference on Lasers and Electro-Optics, CLEO/Europe, 22-26 May 2011, Munich, Germany. Paper CE3.4. Optical Society of America. ISBN 978-1-4577-0532-8
Akça, B.I. and Nguyen, Van Duc and Kalkman, J. and van Leeuwen, T.G. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2011) Toward Miniaturized Optical Coherence Tomography. In: The Sense of Contact 13, April 7, 2011, Zeist, the Netherlands. FHI Federatie Van Technologiebranches. ISBN not assigned
Bernhardi, E.H. and Lu, Qi and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2011) Monolithic Distributed Bragg Reflector Cavities in Al2O3 with Quality Factors Exceeding 106 Photonics and Nanostructures, 9 (3). pp. 225-234. ISSN 1569-4410 *** ISI Impact 1,505 ***
Bernhardi, E.H. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2011) Highly efficient distributed feedback waveguide laser in Al2O3:Yb3+ on silicon In: Advanced Solid-State Photonics, ASSP 2011, 13-16 Feb 2011, Istanbul, Turkey. ATuD7(1)-ATuD7(3). Optical Society of America. ISBN 978-1-55752-905-3
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2011) Highly efficient, low-threshold monolithic distributed-Bragg-reflector channel waveguide laser in Al2O3:Yb3+ Optics letters, 36 (5). pp. 603-605. ISSN 0146-9592 *** ISI Impact 3,040 ***
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2011) High-Q monolithic distributed Bragg reflector cavities in Al2O3 channel waveguides In: Conference on Lasers and Electro-Optics, CLEO, 1-6 May 2011, Baltimore, Maryland, USA. CME4. Optical Society of America. ISBN 978-1-55752-910-7
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2011) Distributed Bragg reflector high-Q cavities and lasers in Al2O3 on silicon In: Conference on Lasers and Electro-Optics, CLEO/Europe, 22-26 May 2011, Munich, Germany. Paper CE5.2. Optical Society of America. ISBN 978-1-4577-0532-8
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2011) Distributed feedback channel waveguide lasers in erbium- and ytterbium-doped Al2O3:Er3+ on silicon In: Conference on Lasers and Electro-Optics, CLEO Europe, 22-26 May 2011, Munich, Germany. Paper CJ10.4. Optical Society of America. ISBN 978-1-4577-0532-8
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2011) Monolithic distributed Bragg reflector cavities in Al2O3 with quality factors exceeding one million In: International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim, 28 August - 1 September 2011, Sydney, Australia. Paper 4240-CT-6. Conference Handbook. Australian Optical Society. ISBN 978-0-9775657-7-1
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2011) Ultra-narrow-linewidth distributed feedback lasers in Al2O3:Er3+ and Al2O3:Yb3+ In: International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim, 28 August - 1 September 2011, Sydney, Australia. Paper 5420. Conference Handbook. Australian Optical Society. ISBN 978-0-9775657-7-1
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2011) Efficient and ultra-narrow-linewidth integrated waveguide lasers in Al2O3:Yb and Al2O3:Er (Invited) In: International Laser Physics Workshop, LPHYS 2011, 11-15 July 2011, Sarajevo, Bosnia and Herzegovina. Paper 4.5.3. L'Phys'11 Program. General Physics Institute, Moscow. ISBN not assigned
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2011) High-Q distributed-Bragg-grating laser cavities. In: 16th International Conference on Luminescence & Optical Sperctroscopy of Condensed Matter, 26 Jun - 01 Jul 2011, Ann Arbor, MI. Paper MI2-p.12. Conference Program. University of Michigan. ISBN not assigned
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and de Ridder, R.M. and Pollnau, M. (2011) High-Quality Monolithic Distributed Bragg Reflector Cavities and Lasers in Alumina Channel Waveguides. In: Proceedings of the 2011 Annual Symposium of the IEEE Photonics Benelux Chapter, 1-2 December 2011, Ghent, Belgium. pp. 41-44. Proceedings of the 2011 Anual Symposium of the IEEE Photonics Benelux Chapter. Department of Information Technology, Ghent University. ISBN 978-90-76546-00-1
Bradley, J.D.B. and Pollnau, M. (2011) Erbium-doped integrated waveguide amplifiers and lasers. Laser & Photonics Reviews, 5 (3). pp. 368-403. ISSN 1863-8880 *** ISI Impact 7,486 ***
Pollnau, M. (2011) Integrated optics - guiding light into the future. (Invited) In: International Laser Physics Workshop, LPHYS 2011, 11-15 July 2011, Sarajevo, Bosnia and Herzegovina. Paper PS4. General Physics Institute, Moscow. ISBN not assigned
Pollnau, M. and Bernhardi, E.H. and Bradley, J.D.B. and de Ridder, R.M. and Wörhoff, K. and Yang, Jing and Diemeer, M.B.J. and Driessen, A. (2011) Rare-earth-ion-doped lasers integrated on a silicon chip. In: Joint Annual Meeting of the Swiss Physical Society and the Austrian Physical Society, 15-17 June 2011, Lausanne, Switzerland. Paper 214. Bulletin SPG / SSP 28. Swiss Physical Society. ISBN not assigned
Wörhoff, K. and Bernhardi, E.H. and Bradley, J.D.B. and Yang, Jing and Agazzi, L. and Ay, F. and de Ridder, R.M. and Pollnau, M. (2011) Rare-earth-ion doped amplifiers and lasers integrated on silicon. (Invited) In: 13th International Conference on Transparent Optical Networks, ICTON 2011, 26-30 June 2011, Stockholm, Sweden. pp. 1-4. IEEE. ISBN 978-1-4577-0882-4
Wörhoff, K. and de Ridder, R.M. and Hoekstra, H.J.W.M. and Pollnau, M. (2011) Integrated light sources and optical sensors. Fotonica Magazine, 36 (1). pp. 9-17. ISSN 1871-7802

2010

Agazzi, L. and Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. (2010) Al2O3:Er3+ waveguide amplifiers at 1.5 μm In: 15th European Conference on Integrated Optics (ECIO 2010), 7-9 April 2010, Cambridge, United Kingdom. ThE2. IEEE Photonics Society. ISBN not assigned
Agazzi, L. and Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. (2010) Understanding Al2O3:Er3+ device performance In: Proceedings of the 2010 Annual Symposium of the IEEE Photonics Benelux Chapter, 18-19 November 2010, Delft, The Netherlands. pp. 261-264. IEEE Photonics Benelux Chapter. ISBN 978-90-78314-15-8
Agazzi, L. and Bradley, J.D.B. and Dijkstra, M. and Ay, F. and Roelkens, G. and Baets, R. and Wörhoff, K. and Pollnau, M. (2010) Monolithic integration of erbium-doped amplifiers with silicon-on-insulator waveguides. Optics express, 18 (26). pp. 27703-27711. ISSN 1094-4087 *** ISI Impact 3,148 ***
Agazzi, L. and Bradley, J.D.B. and Roelkens, G. and Baets, R. and Ay, F. and Wörhoff, K. and Pollnau, M. (2010) Wafer-scale monolithic integration of Al2O3:Er3+ amplifiers with Si waveguides In: Conference on Lasers and Electro-Optics, 16-21 May 2010, San Jose, CA. JWA92. Optical Society of America. ISBN 978-1-55752-889-6
Agazzi, L. and Wörhoff, K. and Pollnau, M. and Kahn, A. and Fechner, M. and Petermann, K. and Huber, G. (2010) Upconversion spectroscopy of Al2O3:Er3+ In: IV International Workshop on Photonic and Electronic Materials, Scientific Program and Workshop Abstracts, 5-7 July 2010, San Sebastian, Spain. 49. Dostonia International Physics Center. ISBN not assigned
Ay, F. and Geskus, D. and Iñurrategui, I. and Aravazhi, S. and Gadgil, V.J. and Wörhoff, K. and Pollnau, M. (2010) Focused Ion Beam Nanostructured Gratings in Crystalline KYW:Yb3+ Channel Waveguides In: Proceedings of the 2010 Annual Symposium of the IEEE Photonics Benelux Chapter, 18-19 November 2010, Delft, The Netherlands. pp. 265-268. Uitgeverij TNO. ISBN 978-90-78314-15-8
Bernhardi, E.H. and Wörhoff, K. and Bradley, J.D.B. and de Ridder, R.M. and Pollnau, M. (2010) Integrated Al2O3:Er3+ microring and distributed feedback lasers on silicon In: Symposium K: Rare earth doped materials for optical based technologies, 7-11 June 2010, Strasbourg. pp. 5-6. E-MRS 2010 Spring Meeting. European Materials Research Society (E-MRS). ISBN not assigned
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Agazzi, L. and Khan, M.R.H. and Roeloffzen, C.G.H. and Wörhoff, K. and Pollnau, M. and de Ridder, R.M. (2010) Low-threshold, single-frequency distributed-feedback waveguide laser in Al2O3:Er3+ on silicon In: Conference on Lasers and Electro-Optics, 16-21 May 2010, San Jose, CA. CTuU4. Optical Society of America. ISBN 978-1-55752-889-6
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Agazzi, L. and Khan, M.R.H. and Roeloffzen, C.G.H. and Wörhoff, K. and Pollnau, M. and de Ridder, R.M. (2010) Ultra-narrow-linewidth, single-frequency distributed feedback waveguide laser in Al2O3:Er3+ on silicon Optics letters, 35 (14). pp. 2394-2396. ISSN 0146-9592 *** ISI Impact 3,040 ***
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Agazzi, L. and Khan, M.R.H. and Roeloffzen, C.G.H. and Wörhoff, K. and Pollnau, M. and de Ridder, R.M. (2010) Single-Frequency, Narrow-Linewidth Distributed Feedback Waveguide Laser in Al2O3:Er3+ on Silicon In: 15th European Conference on Integrated Optics (ECIO 2010), 7-9 April 2010, Cambridge, United Kingdom. ThE1. IEEE Photonics Society. ISBN not assigned
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Wörhoff, K. and Pollnau, M. and de Ridder, R.M. (2010) 1.7-kHz-linewidth distributed feedback laser in Al2O3:Er3+ In: Europhoton Conference, 30 Aug - 3 Sep 2010, Hamburg, Germany. Paper FrB7. Europhysics Conference Abstract 34C. European Physical Society. ISBN 2-914771-64-9
Bradley, J.D.B. and Agazzi, L. and Ay, F. and Stoffer, R. and Wörhoff, K. and Pollnau, M. (2010) Widely wavelength-selective Al2O3:Er3+ ring laser In: 15th European Conference on Integrated Optics (ECIO 2010), 7-9 April 2010, Cambridge, United Kingdom. ThE3. IEEE Photonics Society. ISBN not assigned
Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Ay, F. and Wörhoff, K. and Pollnau, M. (2010) 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 B (Optical physics), 27 (2). pp. 187-196. ISSN 0740-3224 *** ISI Impact 1,731 ***
Bradley, J.D.B. and Stoffer, R. and Bakker, A.F. and Agazzi, L. and Ay, F. and Wörhoff, K. and Pollnau, M. (2010) Integrated Al2O3:Er3+ zero-loss optical amplifier and power splitter with 40 nm bandwidth IEEE photonics technology letters, 22 (5). pp. 278-280. ISSN 1041-1135 *** ISI Impact 1,945 ***
Geskus, D. and Aravazhi, S. and Wörhoff, K. and Pollnau, M. (2010) Highly efficient Gd, Lu co-doped KYW:Yb3+ planar and channel waveguide lasers In: IV International Workshop on Photonic and Electronic Materials, Scientific Program and Workshop Abstracts, 5-7 July 2010, San Sebastian, Spain. 50. Dostonia International Physics Center. ISBN not assigned
Pollnau, M. and Bradley, J.D.B. and Ay, F. and Bernhardi, E.H. and de Ridder, R.M. and Wörhoff, K. (2010) On-chip integrated lasers in Al2O3:Er on silicon (Invited) In: Photonics West, 23-28 Jan 2010, San Francisco, California, USA. 76050M. Proceedings of the SPIE 7605. SPIE, the international Society for Optical Engineering. ISSN 0277-786X
Pollnau, M. and Bradley, J.D.B. and Bernhardi, E.H. and Ay, F. and de Ridder, R.M. and Wörhoff, K. (2010) Integrated amplifiers and lasers in Al2O3:Er3+ thin films on a silicon chip (Invited) In: IV International Workshop on Photonic and Electronic Materials, Scientific Program and Workshop Abstracts, 5-7 July 2010, San Sebastian, Spain. 44. Dostonia International Physics Center. ISBN not assigned
Pollnau, M. and Bradley, J.D.B. and Yang, Jing and Bernhardi, E.H. and de Ridder, R.M. and Wörhoff, K. (2010) Rare-earth-ion doped waveguide amplifiers and lasers in alumina and polymers. (Invited) In: Frontiers in Optics, FIO 2010 - Novel Hybrid Integration II, 24-28 October 2010, Rochester, NY. Paper FWD1. OSA Technical Digest. Optical Society of America. ISBN 978-1-55752-921-3
Wörhoff, K. and Bradley, J.D.B. and Agazzi, L. and Pollnau, M. (2010) Rare-earth-ion-doped Al2O3 for integrated optical amplification (Invited) In: Photonics West, 23-28 Jan 2010, San Francisco, California, USA. 760408. Proceedings of the SPIE 7604. SPIE, the international Society for Optical Engineering. ISSN 0277-786X ISBN 9780819480002
Yang, Jing and Grivas, C. and Diemeer, M.B.J. and Driessen, A. and Pollnau, M. (2010) Continuous-wave polymer lasers. In: IV International Workshop on Photonic and Electronic Materials, Scientific Program and Workshop Abstracts, 5-7 July 2010, San Sebastian, Spain. 51. Dostonia International Physics Center. ISBN not assigned

2009

Agazzi, L. and Bradley, J.D.B. and Ay, F. and Kahn, A. and Scheife, H. and Huber, G. and de Ridder, R.M. and Wörhoff, K. and Pollnau, M. (2009) Energy Migration Governs Upconversion Losses in Er3+-doped Integrated Amplifiers In: Conference on Lasers and Electro-Optics Europe, 14-19 June 2009, Munich, Germany. CE1.3 MON. IEEE. ISBN 978-1-42444-079-5
Bernhardi, E.H. and van Wolferen, H.A.G.M. and Dijkstra, M. and Agazzi, L. and Wörhoff, K. and Pollnau, M. and de Ridder, R.M. (2009) Designing an Integrated Al2O3:Er3+ Distributed Feedback Laser In: Proceedings of the 2009 Annual Symposium of the IEEE Photonics Benelux Chapter, 05-06 Nov 2009, Brussels, Belgium. pp. 197-200. VUBPress Brussels University Press. ISBN 978-90-5487-650-2
Bradley, J.D.B. and Agazzi, L. and Ay, F. and Wörhoff, K. and Pollnau, M. (2009) High-performance Al2O3:Er3+ integrated optical amplifiers (Invited) In: Proceedings of the International Laser Physics Workshop, 13-17 July 2009, Barcelona, Spain. 8.3.5. Interperiodica Publishing. ISBN not assigned
Bradley, J.D.B. and Stoffer, R. and Agazzi, L. and Ay, F. and Wörhoff, K. and Pollnau, M. (2009) Al2O3:Er3+ as a broad gain medium for 1.53-µm integrated optical applications In: Proceedings of the 2009 Annual Symposium of the IEEE Photonics Benelux Chapter, 05-06 Nov 2009, Brussels, Belgium. pp. 13-16. VUBPress Brussels University Press. ISBN 978-90-5487-650-2
Pollnau, M. and Bradley, J.D.B. and Agazzi, L. and Bernhardi, E.H. and Ay, F. and Wörhoff, K. and de Ridder, R.M. (2009) Al2O3:Er3+ as a new platform for active integrated optics (Invited) In: 11th International Conference on Transparent Optical Networks, ICTON '09, 28/06/2009-02/07/2009, Azores. We.D2.1. IEEE. ISBN 978-1-4244-4825-8

2008

Bernhardi, E.H. and Bollig, C. and Forbes, A. and Esser, M.J.D. (2008) Modelling end-pumped solid state lasers. In: Proceedings of the 13th Annual Symposium of the IEEE LEOS Benelux Chapter, 27-28 November 2008, Enschede, The Netherlands. pp. 147-150. IEEE LEOS Benelux Chapter. ISBN 978-90-365-2768-2
Bernhardi, E.H. and Forbes, A. and Bollig, C. and Esser, M.J.D. (2008) Estimation of thermal fracture limits in quasi-continuous-wave end-pumped lasers through a time-dependent analytical model. Optics express, 16 (15). pp. 11115-11123. ISSN 1094-4087 *** ISI Impact 3,148 ***