Title :
New approach towards frequency stabilisation of linewidth-narrowed semiconductor lasers
Author :
Nielsen, C.J. ; Osmundsen, J.H.
Author_Institution :
Technical University of Denmark, Electromagnetics Institute, Lyngby, Denmark
Abstract :
By means of controlling the injection current and the phase of optical feedback, simultaneous frequency stabilisation and line-width reduction of a semiconductor laser are demonstrated. Line-width reduction from 24 MHz to 300 kHz and mean frequency stability better than 800 Hz relative to a Fabry-Perot etalon were obtained.
Keywords :
automatic frequency control; laser frequency stability; semiconductor junction lasers; 300 kHz; double-loop AFC system; frequency stabilisation; injection current control; line-width reduction; mean frequency stability; optical feedback phase control; semiconductor lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830439
