Title :
Dependence of mode stability and linewidth of DFB lasers on facet reflectivity and coupling coefficient
Author :
Eddolls, D.V. ; Park, C.A. ; Buus, J.
Author_Institution :
GEC-Marconi, Plessey Res. Caswell Ltd., Towcester, UK
fDate :
3/28/1991 12:00:00 AM
Abstract :
The effect on dominant emission mode and linewidth of 1550 nm DFB lasers of antireflection coating of a single facet has been investigated. The probability of a mode jump caused by the coating has been correlated with coupling coefficient magnitude. Linewidth increased by a factor of 1.6 when facet reflectivity decreased to 5%, compared with a calculated change of 2.3.
Keywords :
antireflection coatings; distributed feedback lasers; laser frequency stability; laser modes; semiconductor junction lasers; 1550 nm; DFB lasers; antireflection coating; coupling coefficient; dominant emission mode; facet reflectivity; linewidth; mode jump; mode stability;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910372
