Reliable widely tunable electrically pumped 1050nm MEMS-VCSELs with amplifier in single butterfly co-package

Author(s)
Potsaid, Benjamin M.; Carrasco-Zevellos, Oscar; Chen, Siyu; Moult, Eric Michael; Fujimoto, James G
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Abstract
We demonstrate the first 1050nm MEMS-eVCSEL co-packaged with a wideband amplifier to achieve over 70nm wavelength tuning at over 30mW of output power and SMSR greater than 40dB. Ophthalmic Optical Coherence Tomography Angiography (OCTA) images acquired at 800kHz A-scan rates showcase the telecom grade 14pin butterfly co-package as a path to low cost swept source OCT engines. Device design employs a strain-compensated InGaAs/GaAsP gain region disposed on a wideband fully oxidized GaAs/AlxOy back mirror capable of tuning ranges beyond 100nm. It has been suggested the wideband fully oxidized GaAs/AlxOy back mirror may pose risk to device lifetime reliability. However, over 9000hrs of lifetime testing validates reliability and projects device lifetimes exceed 20,000hrs under continuous use.
Date issued
2020-03
URI
https://hdl.handle.net/1721.1/129536
Department
Massachusetts Institute of Technology. Research Laboratory of Electronics; Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology. Institute for Medical Engineering & Science
Journal
Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Publisher
SPIE
Citation
Burgner, Christopher et al. “Reliable widely tunable electrically pumped 1050nm MEMS-VCSELs with amplifier in single butterfly co-package.” Progress in Biomedical Optics and Imaging - Proceedings of SPIE, 11228 (March 2020): 1122809 © 2020 The Author(s)
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