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Proceedings Paper

High-contrast grating VCSELs and applications (Conference Presentation)
Author(s): Connie J. Chang-Hasnain; Kevin Cook; Jonas Horst Kapraun; Jiaxing Wang
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Paper Abstract

Recent progress of vertical-cavity surface-emitting lasers (VCSELs) using high contrast grating (HCG) and their applications will be reviewed. A typical electrically-pumped VCSEL consists of two oppositely doped distributed Bragg reflectors (DBRs) with a cavity layer in between. This conventional design requires epitaxy that is 6-8 micron thick having 0.1% precision in composition and thickness. Replacing the top DBR with a single layer, ultra-thin high contrast grating not only drastically increases the epitaxy and processing yield, but enables a wide and continuous wavelength swept. We will discuss recent progress of electrically-pumped, tunable VCSELs emitting at 850-nm, 940-nm, 1060-nm, 1300-nm and 1550-nm. New applications in optical coherence tomography, 3D sensing and LIDAR will be discussed.

Paper Details

Date Published: 8 March 2019
Proc. SPIE 10928, High Contrast Metastructures VIII, 1092802 (8 March 2019); doi: 10.1117/12.2515571
Show Author Affiliations
Connie J. Chang-Hasnain, Univ. of California, Berkeley (United States)
Kevin Cook, Univ. of California, Berkeley (United States)
Jonas Horst Kapraun, Univ. of California, Berkeley (United States)
Jiaxing Wang, Univ. of California, Berkeley (United States)

Published in SPIE Proceedings Vol. 10928:
High Contrast Metastructures VIII
Connie J. Chang-Hasnain; Andrei Faraon; Weimin Zhou, Editor(s)

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