DocumentCode :
775701
Title :
Optical Frequency Standard by HI Doppler-Broadened Absorption and External-Cavity Laser Diode at 1.541 
Author :
Pesatori, Alessandro ; Norgia, Michele ; Calabrese, Vito ; Galzerano, Gianluca ; Bava, Elio ; Svelto, Cesare
Author_Institution :
Dipt. di Elettron. e Inf., Politec. di Milano, Milano
Volume :
57
Issue :
8
fYear :
2008
Firstpage :
1708
Lastpage :
1712
Abstract :
An external-cavity laser diode was frequency locked on the molecular absorption line R(3) of hydrogen iodide at 1.541 mum using the wavelength-modulation technique. Stabilization is realized by means of two feedback loops acting on two different frequency ranges. Measurements of the closed-loop error signal provided a relative frequency stability of a few parts in 10-10 in a 50-kHz acquisition bandwidth.
Keywords :
Doppler effect; laser frequency stability; light absorption; optical modulation; semiconductor lasers; HI Doppler-broadened absorption; bandwidth 50 kHz; closed-loop error signal; external-cavity laser diode; feedback loops; frequency stability; molecular absorption line; optical frequency standard; wavelength 1.541 mum; wavelength-modulation technique; Laser stability; optical spectroscopy; optical variable measurement; semiconductor lasers; spectroscopy;
fLanguage :
English
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9456
Type :
jour
DOI :
10.1109/TIM.2008.925716
Filename :
4553744
Link To Document :
