Title :
Spectral characteristics of a DFB laser under high-speed direct modulation
Author :
Motosugi, G. ; Yoshikuni, Y. ; Itaya, Y.
Author_Institution :
NTT Atsugi Electrical Communication Laboratory, Atsugi, Japan
Abstract :
Characteristics of a DFB laser under high-speed direct modulation are studied with an emphasis on the spectral analysis. A stable single-longitudinal-mode oscillation was confirmed up to 8.4 GHz direct modulation. The possibility of reducing the frequency chirping by device parameter optimisation is predicted on the basis of the experimental results obtained.
Keywords :
distributed feedback lasers; laser modes; optical modulation; semiconductor junction lasers; DFB laser; buried heterostructure; device parameter optimisation; frequency chirping; high-speed direct modulation; semiconductor laser; single-longitudinal-mode oscillation; spectral analysis; spectral characteristics;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840576
