Facet-embedded thin-film III-V edge-emitting lasers integrated with SU-8 waveguides on silicon.
Abstract
A thin-film InGaAs/GaAs edge-emitting single-quantum-well laser has been integrated with a tapered multimode SU-8 waveguide onto an Si substrate. The SU-8 waveguide is passively aligned to the laser using mask-based photolithography, mimicking electrical interconnection in Si complementary metal-oxide semiconductor, and overlaps one facet of the thin-film laser for coupling power from the laser to the waveguide. Injected threshold current densities of 260A/cm(2) are measured with the reduced reflectivity of the embedded laser facet while improving single mode coupling efficiency, which is theoretically simulated to be 77%.
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Scholars@Duke
Nan Marie Jokerst
Dr. Nan Marie Jokerst is the J. A. Jones Distinguished Professor of Electrical and Computer Engineering at Duke University, and the Executive Director of the Duke Shared Materials Instrumentation Facility, a Duke shared cleanroom and characterization facility. She was the Chair of the Duke Academic Council from 2014-2015 and an Associate Dean in the Pratt School of Engineering for 6 years. She received her BS in Physics from Creighton University in 1982, and her MS and PhD in Electrical Engineering from the University of Southern California in 1984 and 1989, respectively. She is a Fellow of the IEEE, and has served as an elected member of the IEEE Photonics Board of Governors, and as the VP for Conferences and as the VP Technical Affairs, as well as the Atlanta Section President, Vice President, Treasurer, and Secretary, and a member of the IEEE Proceedings Editorial Board. She is a Fellow of Optica (formerly the the Optical Society of America), and has served as Chair of the OSA Engineering Council and as an Associate Editor of Optica. Her awards include an NSF Presidential Young Investigator Award, an IEEE Third Millenium Medal, the IEEE/HP Harriet B. Rigas Medal, and the Alumni in Academia Award for the University of Southern California Viterbi School of Engineering. She also served on the National Academies Board on Global Science and Technology. She has published over 250 refereed journal and conference publications, and has 6 patents. She is a co-founder of the organization Triangle Women in STEM.
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