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1 May 2014A new RF frequency standard design based on a beat note between longitudinal modes of a frequency locked CW-laser
Vadim M. Polyakov,1 Evgeny Viktorov,1 Anton V. Kovalev,1 Oleg A. Orlov2
1National Research Univ. of Information Technologies, Mechanics and Optics (Russian Federation) 2D.I. Mendeleyev Institute for Metrology (Russian Federation)
We demonstrate a new approach to designing a compact RF standard based on the transfer of frequency stability of
hyperfine transitions in molecular iodine to the stability of a laser cavity length. We use frequency doubled Nd:YVO4
laser operating in Kerr lens mode-locked regime and frequency lock it to hyperfine transitions in molecular iodine with
further detecting the beat note signal between longitudinal modes on a fast photodiode. A similar system is used for
estimating the standard Allan deviation of RF signal which is 2.1 x 10-14 at the time 100 s.
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Vadim M. Polyakov, Evgeny Viktorov, Anton V. Kovalev, Oleg A. Orlov, "A new RF frequency standard design based on a beat note between longitudinal modes of a frequency locked CW-laser," Proc. SPIE 9135, Laser Sources and Applications II, 913509 (1 May 2014); https://doi.org/10.1117/12.2051927