Title :
Effect of varying threshold gain on second order intermodulation distortion in distributed feedback lasers
Author :
Kawamura, H. ; Kamite, K. ; Yonetani, H. ; Ogita, S. ; Soda, H. ; Ishikawa, H.
Author_Institution :
Fujitsu, Kanagawa, Japan
Abstract :
Bias-dependence of second order intermodulation distortion (IMD2) of distributed-feedback laser-diodes (DFB-LD) has been investigated both theoretically and experimentally. A new analytical model proposes that varying the threshold gain is responsible for the bias-dependence of IMD2. The experimental behaviour is explained using this theory.
Keywords :
distributed feedback lasers; intermodulation; laser theory; semiconductor junction lasers; analytical model; bias dependence; distributed feedback lasers; laser-diodes; second order intermodulation distortion; threshold gain;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19901098
