1 May 2014 A new RF frequency standard design based on a beat note between longitudinal modes of a frequency locked CW-laser
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Abstract
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, Vadim M. Polyakov, Evgeny Viktorov, Evgeny Viktorov, Anton V. Kovalev, Anton V. Kovalev, Oleg A. Orlov, 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); doi: 10.1117/12.2051927; https://doi.org/10.1117/12.2051927
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