DocumentCode
1064753
Title
A novel analytical expression of sensitivity to external optical feedback for DFB semiconductor lasers
Author
Hirono, T. ; Kurosaki, T. ; Fukuda, M.
Author_Institution
NTT Opto-electron. Lab., Kanagawa, Japan
Volume
28
Issue
12
fYear
1992
fDate
12/1/1992 12:00:00 AM
Firstpage
2674
Lastpage
2677
Abstract
A novel analytical expression for DFB laser sensitivity to external optical feedback is derived based on coupled-wave theory. The expression reveals that the sensitivity is proportional to the ratio between the output power from the reflector-side facet and the magnitude of Lagrangian of the electromagnetic field in the cavity. The simplicity of the expression helps in estimating the sensitivity of DFB lasers with complex cavity structures
Keywords
distributed feedback lasers; feedback; laser cavity resonators; laser theory; semiconductor lasers; sensitivity; DFB semiconductor lasers; Lagrangian; complex cavity structures; coupled-wave theory; electromagnetic field; external optical feedback; laser cavities; output power; reflector-side facet; sensitivity; Bragg gratings; Optical feedback; Optical refraction; Optical sensors; Optical variables control; Optical waveguides; Output feedback; Reflectivity; Refractive index; Waveguide junctions;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/3.166457
Filename
166457
Link To Document