Title :
Measurements of the linewidth of ridge-guide DFB lasers
Author :
Henning, I.D. ; Westbrook, L.D. ; Nelson, A.W. ; Fiddyment, P.J.
Author_Institution :
British Telecom Research Laboratories, Ipswich, UK
Abstract :
Measurements of the linewidth of nominally 1.5 ¿m ridge-guide DFB lasers are presented. Values of ~15 MHz at output powers of 10 mW have been measured. By using a simple external cavity the linewidth was reduced by approximately two orders of magnitude.
Keywords :
distributed feedback lasers; laser beams; laser cavity resonators; 1.5 microns wavelength; external cavity; linewidth; output powers; ridge-guide DFB lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840601
