DocumentCode :
2815533
Title :
Optical frequency standard at 1.54 μm based on the HI molecule and Extended Cavity Laser Diode
Author :
Calabrese, V. ; Norgia, M. ; Pesatori, A. ; Svelto, C.
Author_Institution :
Dipt. di Elettron. e Inf., Politec. di Milano, Milan
fYear :
2008
fDate :
19-21 May 2008
Firstpage :
65
Lastpage :
68
Abstract :
We have developed and characterized an original optical frequency standard based on the IR absorption line R(3) of the HI molecule. Accurate FM-spectroscopy of hydrogen iodide was performed by an extended cavity laser diode (ECLD). By the FM sideband technique we achieved absolute frequency stabilization of the ECLD to the absorption line central frequency of 194.536 THz. The novelty of this work comes from using a non conventional molecular reference, state-of-the-art ECLDs, and two or more nested control loops for a stiff stabilization of the optical oscillator.
Keywords :
frequency standards; infrared spectra; laser beams; laser cavity resonators; laser frequency stability; semiconductor lasers; ECLD; FM sideband technique; FM-spectroscopy; HI molecule; IR absorption line; extended cavity laser diode; frequency stabilization; nested control loops; optical frequency standard; optical oscillator; Atom optics; Diode lasers; Frequency modulation; Hydrogen; Laser tuning; Optical attenuators; Optical noise; Spectroscopy; Standards development; Stimulated emission;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Frequency Control Symposium, 2008 IEEE International
Conference_Location :
Honolulu, HI
ISSN :
1075-6787
Print_ISBN :
978-1-4244-1794-0
Electronic_ISBN :
1075-6787
Type :
conf
DOI :
10.1109/FREQ.2008.4622957
Filename :
4622957
Link To Document :
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