Narrow spectral linewidth 1. 5 /mu/m GaInAsP/InP distributed Bragg reflector (DBR) lasers

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/3.29258· OSTI ID:5759940

Takahashi, M; Michitsuji, Y; Yoshimura, M; Yamazoe, Y; Nishizawa, H; Sugimoto, T

The spectral linewidth of DBR lasers was investigated theoretically and experimentally. The narrowest linewidth of 3.2 MHz was obtained at P = 1.5 mW. It was found that narrow spectral linewidths can be obtained constantly for the DBR lasers with long and low optical loss corrugation regions, and with a small coupling coefficient. These results are well explained by the external cavity model, which was used in our theoretical analysis. Moreover, in order to increase the output power of these narrow-linewidth DBR laser, AR coating was applied to the output facet. The improvements in the quantum efficiency and submode suppression were achieved. The degradation of the linewidths by the AR coating was insignificant.

• Research Organization: Application Specific Devices R and D Dept., Information and Electronics Technology Labs., Sumitomo Electric Industries Ltd., 1-1-3 Shimaya Konohana Osaka 554 (JP)
• OSTI ID: 5759940
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. 25:6; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ARGON
ARSENIC COMPOUNDS
ARSENIDES
BRAGG REFLECTION
COATINGS
DATA
EFFICIENCY
ELEMENTS
FLUIDS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GASES
INDIUM COMPOUNDS
INDIUM PHOSPHIDES
INFORMATION
LASER CAVITIES
LASERS
LINE WIDTHS
NONMETALS
NUMERICAL DATA
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
QUANTUM EFFICIENCY
RARE GASES
REFLECTION
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SOLID STATE LASERS
THEORETICAL DATA