Title :
Precise optical heterodyne beat frequency from laser diodes locked to atomic resonances
Author :
Villeneuve, B. ; Cyr, N. ; Tetu, M.
Author_Institution :
Laval University, Electrical Engineering Department, Sainte-Foy, Canada
Abstract :
Semiconductor lasers locked to atomic resonances provide precise optical frequencies with very good long-term stability. This property can be used in coherent optical communications for obtaining a well defined IF frequency (or frequencies) at the receiver. The letter deals with the optical heterodyne detection of a precise 6.54 GHz frequency offset derived from the hyperfine structure of rubidium 87
Keywords :
demodulation; laser frequency stability; optical communication equipment; optical links; semiconductor junction lasers; 6.54 GHz; 87Rb; atomic resonances; coherent optical communications; frequency locking; hyperfine structure; laser diodes; long-term stability; optical heterodyne beat frequency; optical heterodyne detection; precise optical frequencies; receiver IF frequency; semiconductor lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870756
