Title :
Sub-MHz spectral linewidth in 1.5 mu m separate-confinement-heterostructure (SCH) quantum-well DFB LDs
Author :
Takano, Shigeru ; Sasaki, T. ; Yamada, Hiroyoshi ; Kitamura, Masayuki ; Mito, I.
Author_Institution :
Optoelectron. Res. Labs., NEC Corp., Kawasaki, Japan
fDate :
3/2/1989 12:00:00 AM
Abstract :
Extremely narrow spectral-linewidth characteristics in 1.5 mu m GaInAs/GaInAsP separate-confinement-heterostructure (SCH), quantum-well (QW), distributed-feedback, laser diodes (DFB LDs) are reported. Narrower linewidths were obtained in lasers with smaller numbers of quantum wells. Sub-MHz linewidth was achieved for the first time in single laser diodes.
Keywords :
III-V semiconductors; distributed feedback lasers; gallium arsenide; indium compounds; optical communication equipment; semiconductor junction lasers; 1 MHz; 1.5 micron; GaInAs-GaInAsP; SCH-QW-DFB-LD; distributed-feedback; laser diodes; narrow spectral-linewidth characteristics; quantum-well DFB LDs; semiconductors; separate-confinement-heterostructure; single laser diodes;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890247
