Title :
Dependence of single-longitudinal-mode probability on DFB laser facet structure
Author :
Matsuoka, T. ; Yoshikuni, Y. ; Motosugi, G.
Author_Institution :
NTT Atsugi Electrical Communication Laboratories, Atsugi, Japan
Abstract :
The probability of single-longitudinal-mode (SLM) operation is calculated for three kinds of DFB facet structures. To obtain high SLM probability, a DFB laser with cleaved facets requires relatively large kL, but the introduction of asymmetry to facet reflectivity greatly relaxes the kL requirements.
Keywords :
distributed feedback lasers; integrated optics; laser modes; semiconductor junction lasers; DFB laser facet structure; cleaved facets; facet reflectivity; semiconductor laser; side mode suppression ratio; single-longitudinal-mode probability;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850814
