Single-frequency continuous-wave operation of ring resonator diode lasers

Journal Article · Mon Dec 23 04:00:00 EST 1991 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.105730· OSTI ID:5647721

Hohimer, J P; Craft, D C; Hadley, G R; Vawter, G A; Warren, M E ^[1]

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1. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

We report continuous-wave room-temperature operation of a semiconductor ring resonator diode laser with a single {ital Y}-junction outcoupling waveguide. This device with a 150 {mu}m radius and 8-{mu}m-wide etched-rib waveguide has a threshold current of 72 mA and emits up to 1 mW of single-frequency output. The side-mode-rejection ratio of this laser exceeds 22 dBm over a {gt}50 mA current range corresponding to a stable operating mode of the laser. Studies of the emission behavior in this and other similar ring lasers suggest that the ring is lasing in whispering gallery'' modes, and also that the {ital Y} junction is affecting mode selection in the ring.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5647721
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 59:26; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
ARSENIC COMPOUNDS
ARSENIDES
DESIGN
ELECTROMAGNETIC RADIATION
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
HETEROJUNCTIONS
JUNCTIONS
LASERS
MONOCHROMATIC RADIATION
OPERATION
PERFORMANCE
PNICTIDES
RADIATIONS
RING LASERS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR JUNCTIONS
SEMICONDUCTOR LASERS
SOLID STATE LASERS