Title :
Narrow-linewidth fibre-external-cavity injection lasers
Author :
Liou, K.-Y. ; Jhee, Y.K. ; Burrus, C.A. ; Hall, K.L. ; Anthony, P.J.
Author_Institution :
AT&T Bell Laboratories, Crawford Hill Laboratory, Holmdel, USA
Abstract :
A few-decimetre length of single-mode polarisation preserving fibre waveguide is used to provide stable linewidth-narrowing optical feedback to single-frequency injection lasers. Linewidth reductions by a factor of about 50 have been obtained for GRECC, C3 and DFB structures.
Keywords :
distributed feedback lasers; laser cavity resonators; optical communication equipment; optical fibres; semiconductor junction lasers; DFB structures; GRECC; cleaved-coupled cavity; external-cavity injection; linewidth-narrowing optical feedback; optical communication equipment; polarisation-preserving fibre waveguide; semiconductor lasers; single mode optical fibres; single-frequency injection lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850660
