High-contrast grating VCSELs and applications (Conference Presentation)

Connie J. Chang-Hasnain; Kevin Cook; Jonas Horst Kapraun; Jiaxing Wang

doi:10.1117/12.2515571

8 March 2019 High-contrast grating VCSELs and applications (Conference Presentation)

Connie J. Chang-Hasnain, Kevin Cook, Jonas Horst Kapraun, Jiaxing Wang

Proceedings Volume 10928, High Contrast Metastructures VIII; 1092802 (2019) https://doi.org/10.1117/12.2515571
Event: SPIE OPTO, 2019, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

Connie J. Chang-Hasnain, Kevin Cook, Jonas Horst Kapraun, and Jiaxing Wang "High-contrast grating VCSELs and applications (Conference Presentation)", Proc. SPIE 10928, High Contrast Metastructures VIII, 1092802 (8 March 2019); https://doi.org/10.1117/12.2515571

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