DocumentCode :
2093094
Title :
Absolute frequency measurement around 30 THZ with a femtosecond laser comb
Author :
Amy-Klein, A. ; Grain, C. ; Butcher, R.J. ; Shelkovnikov, A. ; Daussy, C. ; Lopez, O. ; Guinet, M. ; Goncharov, A. ; Chardonnet, C.
Author_Institution :
Lab. de Phys. des Lasers, Univ. Paris, Villetaneuse
fYear :
2004
fDate :
5-7 April 2004
Firstpage :
608
Lastpage :
612
Abstract :
Recent advances concerning two-photon Ramsey fringes in SF6 at 30 THz obtained with a 1 m separation between the two interaction zones are presented. The experiment is referenced to a primary standard, the Hydrogen maser / Cs fountain located at BNM-SYRTE, Observatoire de Paris, via a femtosecond laser frequency comb generator. This results in an absolute frequency measurement of the central fringe to plusmn1.4 Hz which corresponds to 5times10-14 in relative frequency.
Keywords :
frequency measurement; high-speed optical techniques; laser variables measurement; measurement by laser beam; sulphur compounds; two-photon processes; Cs fountain; SF6; absolute frequency measurement; femtosecond laser comb; frequency 30 THz; hydrogen maser; laser frequency comb generator; two-photon Ramsey fringes; 30 THz; Optical frequency standard; SF6;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Frequency and Time Forum, 2004. EFTF 2004. 18th European
Conference_Location :
Guildford
ISSN :
0537-9989
Print_ISBN :
0-86341-384-6
Type :
conf
Filename :
5075027
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2093094
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