Thermal waveguiding in oxide-defined, narrow-stripe, large-optical-cavity lasers

Journal Article · Thu Jul 15 04:00:00 EDT 1982 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.93426· OSTI ID:5408937

Chen, Y C; Reisinger, A R; Chinn, S R

The characteristics of oxide-defined, narrow-stripe large-optical-cavity (LOC) AlGaAs lasers are described. Compared with regular narrow-stripe double heterostructure (DH) lasers, the LOC version exhibits more narrowing of the near-field and far-field distributions, higher astigmatism, higher differential quantum efficiency, and higher incidence of sustained pulsations. We have found that these phenomena can be explained in terms of the formation of a thermal waveguide. There is often a striking similarity in characteristics of narrow-stripe LOC and degraded narrow- stripe DH lasers. We suggest that a thermal waveguiding effect is an important factor in determining the behavior of degraded semiconductor lasers.

• Research Organization: Optical Information Systems Incorporated, 350 Executive Boulevard, Elmsford, New York 10523
• OSTI ID: 5408937
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 41:2; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CHALCOGENIDES
CONFIGURATION
DATA
DISTRIBUTION
EFFICIENCY
EQUIPMENT
EXPERIMENTAL DATA
GEOMETRICAL ABERRATIONS
HETEROJUNCTIONS
INFORMATION
JUNCTIONS
LASER CAVITIES
LASERS
NUMERICAL DATA
OPTICAL EQUIPMENT
OXIDES
OXYGEN COMPOUNDS
QUANTUM EFFICIENCY
SEMICONDUCTOR DEVICES
SEMICONDUCTOR JUNCTIONS
SEMICONDUCTOR LASERS
SIZE
SPATIAL DISTRIBUTION
TEMPERATURE EFFECTS
WAVEGUIDES