Spectral linewidth estimation of a 1. 5. mu. m range InGaAsP/InP distributed feedback laser

Journal Article · Sat Mar 01 04:00:00 EST 1986 · IEEE J. Quant. Electron.; (United States)

OSTI ID:5725021

Fujise, M

Spectral linewidth of a 1.5 ..mu..m range distributed feedback buried heterostructure (DFB-BH) laser in CW operation is estimated theoretically and experimentally. Considering the equivalent mirror facet loss coefficient and the confinement factor in the active layer, etc., we modified the conventional formula for the spectral linewidth of single-mode semiconductor lasers and presented a formula for the line-width of DFB lasers. Furthermore, power-dependent linewidth measurements of a 1.5 ..mu..m range InGaAsP/InP DFB-BH laser with a window region were carried out using Fabry-Perot interferometers. The linewidth was observed to increase linearly with inverse output power. The measured result was explained by the calculated result through the modified formula. The full width at half maximum was estimated to be 50 MHz at an output power of 1 mW.

• Research Organization: KDD Res. and Devel. Labs., Meguro-Ku, Tokyo
• OSTI ID: 5725021
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. QE-22:3; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ARSENIC COMPOUNDS
ARSENIDES
CALCULATION METHODS
FABRY-PEROT INTERFEROMETER
FEEDBACK
FLUCTUATIONS
FREQUENCY RANGE
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GALLIUM PHOSPHIDES
INDIUM ARSENIDES
INDIUM COMPOUNDS
INDIUM PHOSPHIDES
INTERFEROMETERS
LASER MIRRORS
LASERS
MEASURING INSTRUMENTS
MHZ RANGE
MHZ RANGE 01-100
MIRRORS
PERFORMANCE
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
POWER RANGE 1-10 MW
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
VARIATIONS