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A combination of continuous-wave optical parametric oscillator and femtosecond frequency comb for optical frequency metrology

Evgeny Kovalchuk·Thilo Schuldt·Achim Peters
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Abstract

We combine a tunable continuous-wave optical parametric oscillator and a femtosecond Ti:Sapphire laser frequency comb to provide a phase-coherent bridge between the visible and mid-infrared spectral ranges. As a first demonstration of this new technique we perform a direct frequency comparison between an iodine stabilized Nd:YAG laser at 1064 nm and an infrared methane optical frequency standard at $3.39 μ$m.

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Evgeny Kovalchuk, Thilo Schuldt, Achim Peters. 2005-09-08. A combination of continuous-wave optical parametric oscillator and femtosecond frequency comb for optical frequency metrology. https://doi.org/10.1364/ol.30.003141

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