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2017 Reprints of Professor Larry A Research in Optoelectronics (A) 2017 Reprints of Professor Larry A. Coldren and Collaborators ECE Technical Report 18-01 Department of Electrical & Computer Engineering University of California, Santa Barbara Research in Optoelectronics (A) Reprints published in 2017 by Professor Larry A. Coldren and Collaborators Published as Technical Report # ECE 18-01 of The Department of Electrical & Computer Engineering The University of California Santa Barbara, CA 93106 Phone: (805) 893-4486 Fax: (805) 893-4500 E-mail: [email protected] http://www.ece.ucsb.edu/Faculty/Coldren/ Introduction: In 2017 Professor Coldren and collaborators published a dozen papers in a number of journals and conferences. All of work involves photonic devices and integrated circuits on III- V compound semiconductor materials as well as their integration into small sub-systems. The characterization of these devices and circuits within systems environments is also included in most cases. As in the past, the reprints have been grouped into several areas. As in recent years, most of these are within I. Photonic Integrated Circuits (PICs): subcategories called out are A. Reviews, B. Optical Phase Locked Loops, C. Optical Frequency Synthesis, D. Signal Processing, and E. PICs for LIDAR. Within a second category, II. Low-power Lasers, there are two more papers. The work was performed with funding from a couple of federal grants, some gift funds from industry, and support from the Kavli Endowed Chair in Optoelectronics and Sensors. Some of the PIC work was funded by the MTO Office of DARPA via subcontracts from Lockheed-Martin and UC-Davis. There was also a GOALI from NSF together with support from Freedom Photonics. The PIC fabrication was performed in the UCSB Nanofab facility partially supported by the NSF. Sub-section (IA.) contains a single invited Tutorial that reviews recent history and the state- of-the-art in InP-based photonic-integrated-circuits (PICs). Copies of the presentation slides are included. In (IB.), three papers describe continued work on low-power integrated heterodyne optical phase-locked loop (OPLL) circuits. These might be used in ‘Analog Coherent’ communications, in frequency synthesis, or other sensor applications. Sub-section (IC.) contains four papers which describe work using the OPLLs to lock widely-tunable lasers to stable reference sources, such as Kerr frequency combs from micro-resonators, for optical frequency synthesis. Prof. Yao continues to study our active micro-ring filters in sub-section ID, this time operating them as tunable lasers. In IE. the emission properties of sparse aperiodic arrays is studied as relevant to Lidar applications. In the second major section II, a new compact, potentially efficient, integrable tunable laser is explored in two papers co-authored with Freedom Photonics researchers. The work involves an active coupled cavity structure, which employs one HR-coated facet mirror and two gratings, one intermediate between two gain sections, the other as the output mirror that may continue into an integrated waveguide. At least one passive phase section is also included in one cavity for tuning. ii Professor Coldren's Group I. Researchers S. Arafin Assistant Project Scientist, UCSB III. Staff A. Miller Center Assistant, OTC Collaborators I. Faculty J. Bowers UCSB M. Rodwell UCSB J. Klamkin UCSB J. Yao University of Ottawa M. Li China Academy of Science II. Researchers M. Lu Infinera (former Postdoctoral Scholar) M. Mashanovitch Freedom Photonics (former Associate Project Scientist) L. Johansson Freedom Photonics (former Associate Research Engineer) Gordon Morrison Freedom Photonics E. Norberg Member of Staff, Aurrion, Inc. (former Graduate Student) J. Parker Freedom Photonics (former Graduate Student) R. Guzzon Photonic Systems Engineer, Aurrion, Inc. iii T. Komlijenovic Research Scientist, UCSB A. Simsek Research Assistant, UCSB S. Kim Teledyne Scientific & Imaging W. Liang OEwaves, Inc. D. Eliyahu OEwaves, Inc. A. Matsko OEwaves, Inc. L. Maleki OEwaves, Inc. R. Helkey Associate Director, IEE & AIM Photonics, UCSB Vladimir Ilchenko OEwaves, Inc. Anatoliy Savchenkov OEwaves, Inc. III. Collaborating Students S. Dwivedi UCSB, Klamkin iv Table of Contents: I. Photonic Integrated Circuits A. Reviews L. A. Coldren, "InP Photonic Integrated Circuits," Proc. Optical Fiber Communication Conference (OFC), paper W4G.1, Los Angeles, California (March 19-23, 2017) INVITED B. Optical Phase Locked Loops Arda Simsek, S. Arafin, S. Kim, G. Morrison, L. Johansson, M. Mashanovitch, L. A. Coldren, and M. Rodwell, "A Chip-Scale Heterodyne Optical Phase-Locked Loop with Low-Power Consumption,” Proc. Optical Fiber Communication Conference (OFC), paper W4G.3, Los Angeles, California (March 19-23, 2017) Shamsul Arafin, Arda Simsek, Mingzhi Lu, Mark J. Rodwell , and Larry A. Coldren, “Heterodyne locking of a fully integrated optical phase-locked loop with on-chip modulators” Optics Letters 42, pp. 3745-3748 (2017) Arda Simsek, Shamsul Arafin, Seong-Kyun Kim, Gordon Morrison, Leif A. Johansson, Milan Mashanovitch, Larry A. Coldren, and Mark J. Rodwell, “Evolution of Chip-Scale Heterodyne Optical Phase-Locked Loops towards Watt Level Power Consumption,” Journal of Lightwave Technology, 35 (10) (October 2017) C. Optical Frequency Synthesis Shamsul Arafin, Arda Simsek, Seong-Kyun Kim, Sarvagya Dwivedi, Wei Liang, Danny Eliyahu, Jonathan Klamkin, Andrey Matsko, Leif Johansson, Lute Maleki, Mark Rodwell, Larry Coldren, “Towards chip-scale optical frequency synthesis based on optical heterodyne phase-locked loop,” Optics Express, 25 (2) p 681-5 (2017) v Shamsul Arafin, Arda Simsek, Seong-Kyun Kim, Sarvagya Dwivedi, Wei Liang, Danny Eliyahu, Johathan Klamkin, Andrey Matsko, Leif Johansson, Lute Maleki, Mark J. Rodwell, and Larry A. Coldren, “Optical Frequency Synthesis by Offset- Locking to a Microresonator Comb” Proc. Conference on Lasers and Electro-Optics (CLEO), paper SW1O.2, San Jose, California (May 14-19, 2017) S. Arafin, A. Simsek, S. K Kim, W. Liang, D. Eliyahu, G. Morrison, M. Mashanovitch, A. Matsko, L. Johansson, L Maleki, M. J. Rodwell, L. A. Coldren. “Power-Efficient Kerr Frequency Comb Based Tunable Optical Source” IEEE Photonics Journal, 9 (3) (June 2017) Shamsul Arafin, Arda Simsek, Seong-Kyun Kim, Mark J. Rodwell, Larry A. Coldren, Lute Maleki, Wei Liang, Vladimir Ilchenko, Anatoliy Savchenkov, Danny Eliyahu, Andrey Matsko, Gordon Morrison, Milan Mashanovitch, and Leif Johansson, “Optical Synthesis Using Kerr Frequency Combs,” Proc. 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS), Besancon, France (July 10-13, 2017) D. Signal Processing Weilin Lui, Ming Li, Robert S. Guzzon, Erik J. Norberg, John S. Parker, Mingzhi Lu, Larry A. Coldren, & Jianping Yao, “An integrated parity-time symmetric wavelength-tunable single-mode microring laser,” Nature Communications 8, pp. 15389 (2017) E. PICs for LIDAR Tin Komljenovic, Roger Helkey, Larry Coldren, and John E. Bowers, "Sparse aperiodic arrays for optical beam forming and LIDAR," Optics Express 25, pp. 2511-2528 (2017) vi II. Low-power Lasers Shamsul Arafin, Gordon Morrison, Milan Mashanovitch, Leif Johansson, and Larry A. Coldren, “Coupled-Cavity Lasers for a Low-Power Integrated Coherent Optical Receiver” Proc. Conference on Lasers and Electro-Optics (CLEO), paper AM3A.5, San Jose, California (May 14-19, 2017) Shamsul Arafin, Gordon B. Morrison, Milan L. Mashanovictch, Leif A. Johansson, and Larry A. Coldren, “Compact Low-Power Consumption Single-Mode Coupled Cavity Lasers,” IEEE Journal of Selected Topics in Quantum Electronics, 23, (6), 6000309 (Nov.-Dec., 2017) vii I. Photonic Integrated Circuits A. Reviews of Applications Indium-phosphide photonic-lntegrated- circuits –A Tutorial Abstract: A collection of slides from the author's conference presentation is given. Integration platforms; Historical overview; Motivation for photonic integration; Transceiver bracket history; InP technology; Choherent communicator motivated photonic integration; Tunable lasers; Commercial PIC examples; Research PIC examples; Analog coherent vs. digital for low power/cost; Hybrid integration; Take-aways. Published in: Optical Fiber Communications Conference and Exhibition (OFC), 2017 Date of Conference: 19-23 March 2017 1 Indium-Phosphide Photonic-Integrated-Circuits Boston U Major contributions by: Meint Smit & Kevin Williams Vikrant Lal & Fred Kish Yuliya Akulova & Mike Larson L. Johansson & M. Mashanovitch Ben Yoo Larry A. Coldren UCSB Collaborators Fred Kavli Professor of Optoelectronics and Sensors ECE & Materials, UC-Santa Barbara What’s the problem? OFC 2017 Size, Weight, Power, Cost, Performance, Reliability Where? • Communication – Long haul – Metro, campus – Data centers, Supercomputers • Sensing/instrumentation • Computing 2 Integration Platforms OFC 2017 Indium Phosphide Silica on Silicon (PLC) • Excellent active components • Excellent passive components • Mature technology • Mature technology • Propagation losses for passive elements • Lack of active elements • Foundries evolving Silicon Photonics • Piggy-back on Si-CMOS Polymer Technology technology • Low loss • Integration with electronics? • Passive waveguides • Constantly improving • Modulators Hybrid performance •No laser Solutions •No laser “Heterogeneous Integration Technology” Introduction/Historical View—PICs OFC 2017 1970’s - OEICs on GaAs for high-speed computing 1980’s – InP photonics/fiber; integration & tunables for coherent Reach
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