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Proceedings Paper

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

Paper Details

Date Published: 3 March 2020
PDF: 6 pages
Proc. SPIE 11228, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIV, 1122809 (3 March 2020); doi: 10.1117/12.2549050
Show Author Affiliations
Christopher Burgner, Praevium Research, Inc. (United States)
John Carter, Praevium Research, Inc. (United States)
Alan Donaldson, Thorlabs Quantum Electronics Inc. (United States)
Nate Bramham, Praevium Research, Inc. (United States)
Benjamin Potsaid, Thorlabs, Inc. (United States)
Massachusetts Institute of Technology (United States)
Oscar Carrasco-Zevallos, Massachusetts Institute of Technology (United States)
Siyu Chen, Massachusetts Institute of Technology (United States)
Eric Moult, Massachusetts Institute of Technology (United States)
James G. Fujimoto, Massachusetts Institute of Technology (United States)
Peter Heim, Thorlabs Quantum Electronics (United States)
Vijaysekhar Jayaraman, Praevium Research, Inc. (United States)
Alex Cable, Thorlabs, Inc. (United States)


Published in SPIE Proceedings Vol. 11228:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIV
Joseph A. Izatt; James G. Fujimoto, Editor(s)

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