Phase locking of a continuous-wave optical parametric oscillator to an optical frequency comb for optical frequency synthesis

A continuous-wave optical parametric oscillator (OPO) was phase locked to an optical frequency comb in the 830-nm region. The optical frequency of the OPO was controlled by changing the cavity length of the pump laser. The residual phase noise under phase locking was 220 mradrms and the energy conce...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 2004-07, Vol.40 (7), p.929-936
Main Authors: Inaba, H., Ikegami, T., Feng-Lei Hong, Onae, A., Koga, Y., Schibli, T.R., Minoshima, K., Matsumoto, H., Yamadori, S., Tohyama, O., Yamaguchi, S.-I.
Format: Article
Language:English
Subjects:
Atom optics
Exact sciences and technology
Fluctuations
Frequency synthesizers
Fundamental areas of phenomenology (including applications)
Laser excitation
Laser noise
Measurements common to several branches of physics and astronomy
Metrology, measurements and laboratory procedures
Nonlinear optics
Optical control
Optical noise
Optical parametric oscillators and amplifiers
Optical pumping
Optics
Oscillators
Physics
Time and frequency
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Summary:A continuous-wave optical parametric oscillator (OPO) was phase locked to an optical frequency comb in the 830-nm region. The optical frequency of the OPO was controlled by changing the cavity length of the pump laser. The residual phase noise under phase locking was 220 mradrms and the energy concentration to the carrier was 95%. Furthermore, the optical frequency fluctuations of a free-running OPO were measured by using an optical frequency comb that was phase locked to an atomic clock. The measured fluctuations were around 10 MHz in an hour.
ISSN:0018-9197
1558-1713
DOI:10.1109/JQE.2004.830211