Title :
Estimation of linewidth enhancement factor α of CSP-type AlGaAs lasers from measured correlation between AM and FM noises
Author :
Kikuchi, Kazuro ; Okoshi, Tadashi ; Kawai, Takaaki
Author_Institution :
University of Tokyo, Department of Electronic Engineering, Tokyo, Japan
Abstract :
A novel method for estimating the linewidth enhancement factor a of semiconductor lasers is developed. The correlation between AM and FM noises of a CSP-type AlGaAs laser was measured in the frequency range above 1 MHz. From the measured correlation, the linewidth enhancement factor α is estimated to be approximately -2.2 to -2.8.
Keywords :
III-V semiconductors; aluminium compounds; electron device noise; gallium arsenide; semiconductor junction lasers; AM noise; CSP-type AlGaAs lasers; FM noises; III-V semiconductors; channel substrate planar lasers; frequency range above 1 MHz; linewidth enhancement estimation; linewidth enhancement factor; measured correlation; semiconductor laser; semiconductor lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840313
