High repetition rate frequency comb up- and down-conversion in synchronously driven χ(2) microresonators

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Szabados, Jan
Brasch, Victor
Herr, Simon J.
Obrzud, Ewelina
Jia, Yuechen
Lecomte, Steve
Buse, Karsten
Breunig, Ingo
Herr, Tobias
Optical frequency combs are a key technology for optical precision measurements. So far, most frequency combs operate in the near-infrared regime (NIR). Many applications, however, require combs in the ultraviolet (UV), visible (VIS) or mid-infrared (MIR) spectral ranges. This can be achieved by making use of nonlinear-optical processes. In this contribution, we demonstrate the e ffi cient conversion of frequency combs with a repetition rate of 21 GHz to UV, VIS and MIR wavelengths in a synchronously driven high-Q microresonator with second-order optical nonlinearity. This opens up a new path for applications including, but not limited to, molecular sensing and quantum optics.
Publication Reference
Laser Resonators, Microresonators, and Beam Control XXI, A. Kudryashov, A. Paxton, V. Ilchenko (Eds.), San Francisco (USA), pp. 11