Title :
Absolute Frequency Measurement of F = 4 → F′ = 5 Transition Line of Cesium Using Amplified Optical Frequency Comb
Author :
Kim, Eok Bong ; Park, Sang Eon ; Park, Chang Yong ; Park, Young Ho ; Yee, Dae-Su ; Kwon, Taeg Yong ; Lee, Ho Seong ; Cho, Hyuck
Author_Institution :
Korea Res. Inst. of Stand. & Sci., Daejeon
fDate :
4/1/2007 12:00:00 AM
Abstract :
We obtained fline = (351, 721, 960, 559 39) kHz, kappa = 1, as the absolute frequency of F = 4 rarr F´ = 5 transition of cesium D2 line by measuring the frequency of an external cavity diode laser (ECDL) locked to the center of the line with frequency modulation transfer technique. The frequency of ECDL was measured by an optical frequency synthesizer based on a 1-GHz femtosecond laser system linked to the hydrogen maser. To increase the S/N ratio of the beat note signal, a distributed Bragg reflector laser was injection locked to one of the optical comb components
Keywords :
atomic clocks; caesium; frequency standards; masers; solid lasers; 1 GHz; Cs; absolute frequency measurement; amplified optical frequency comb; atomic clocks; atomic physics; distributed Bragg reflector laser; external cavity diode laser; femtosecond laser system; frequency control; frequency modulation; frequency stability; frequency synthesizers; hydrogen maser; laser stability; optical frequency synthesizer; transition line; Diode lasers; Distributed Bragg reflectors; Frequency measurement; Frequency modulation; Frequency synthesizers; Hydrogen; Laser transitions; Masers; Optical modulation; Ultrafast optics; Atomic clocks; atomic physics; cesium; f requency control; f requency stability; frequency measurement; frequency modulation; frequency synthesizers; laser stability;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2007.891057
