Title :
Suppression of intensity fluctuation of a longitudinal mode in directly modulated GaInAsP/InP dynamic single-mode laser
Author :
Koyama, Fumio ; Tanbun-Ek, T. ; Arai, Shigehisa ; Wang, Shuhui ; Suematsu, Yasuharu ; Furuya, Keiichi
Author_Institution :
Tokyo Institute of Technology, Department of Physical Electronics, Tokyo, Japan
Abstract :
The intensity fluctuation of a longitudinal mode in a modulated dynamic single-mode laser consisting of a 1.6 ¿m GaInAsP/InP buried-heterostructure laser with butt-jointed built-in distributed-Bragg-reflector (BH-BJB-DBR) was suppressed to 30 dB less than that of a conventional laser. The possibility of wideband single-mode-fibre communications in the 1.5¿1.6 ¿m wavelength region without degradation of the bandwidth caused by mode partition noise is suggested.
Keywords :
III-V semiconductors; distributed Bragg reflector lasers; gallium arsenide; indium compounds; laser modes; optical communication equipment; optical modulation; semiconductor junction lasers; 1.5 to 1.6 micron band; BH-BJB-DBR; GaInAsP/InP; III-V semiconductor; buried-heterostructure laser; directly modulated; distributed-Bragg-reflector; dynamic single-mode laser; intensity fluctuation; longitudinal mode; mode partition noise; wideband single-mode-fibre communications;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830225
