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Proceedings Paper

Grating-based red lasers
Author(s): Bardia Pezeshki; Mats Hagberg; Michael Zelinski; Sarah Zou; Emil I. Kolev
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Paper Abstract

We have demonstrated a number of high power and single- frequency lasers at 635 - 680 nm by incorporating a grating reflector within the device, including DBRs, tunable DBRs, monolithic MOPAs, DFBs, and angled-grating DFBs. The DBR laser, with an unpumped grating as the rear reflector, is the simplest single-frequency structure, with about 20 mW output power. The device can be tuned about 3 nm by injecting current in the rear grating. Higher output power can be obtained by combining the DBR with a flared amplifier to form a monolithic MOPA with over 250 mW CW output power. Unlike DBR structures, the DFBs have a grating throughout their gain region, and therefore show no mode hops. Wavelengths as short as 634 nm and output powers as high as 90 mW have been obtained with DFBs. An angle-grating DFB is a broad area device where the angled grating forces lasing in a single spatial and longitudinal mode. More than 400 mW in single-frequency power has been obtained at 660 nm from such a structure. In general, grating-based red lasers are useful for interferometry, spectroscopy, and fiber-coupling applications.

Paper Details

Date Published: 1 April 1999
PDF: 10 pages
Proc. SPIE 3628, In-Plane Semiconductor Lasers III, (1 April 1999); doi: 10.1117/12.344528
Show Author Affiliations
Bardia Pezeshki, SDL, Inc. (United States)
Mats Hagberg, SDL, Inc. (United States)
Michael Zelinski, SDL, Inc. (United States)
Sarah Zou, SDL, Inc. (United States)
Emil I. Kolev, SDL, Inc. (United States)

Published in SPIE Proceedings Vol. 3628:
In-Plane Semiconductor Lasers III
Hong K. Choi; Peter S. Zory, Editor(s)

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