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

Journal Article · Sat Mar 01 00:00:00 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), Vol. QE-22:3
• Country of Publication: United States
• Language: English

Related Subjects

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