Carrier Suppression of Phase Modulated Beam Using Optical Cavity for Coherent Population Trapping Clock

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We present a method of carrier suppression of a phase coherent laser beam produced by an electro optic modulator for coherent population trapping (CPT) clock To suppress the undesired strong carrier mode of the phase modulated beam a Fabry-Perot (FP) cavity is used as an optical filter The intensity of the carrier mode is reduced by 70% without significant loss of the two first order side modes for CPT clock The contrast of the CPT signal is improved by a factor of 1 4 when the carrier suppressed phase coherent laser beam is applied to a (87)Rb CPT clock (C) 2010 The Japan Society of Applied Physics
Publisher
Japan Soc Applied Physics
Issue Date
2010-11
Language
English
Article Type
Article
Keywords

ATOMIC FREQUENCY STANDARDS; INJECTION-LOCKING; SEMICONDUCTOR-LASERS; SIGNAL GENERATION; AMPLIFICATION; SYSTEM; CESIUM; OFFSET; GHZ

Citation

JAPANESE JOURNAL OF APPLIED PHYSICS, v.49, no.11

ISSN
0021-4922
DOI
10.1143/JJAP.49.112801
URI
http://hdl.handle.net/10203/93413
Appears in Collection
PH-Journal Papers(저널논문)
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