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arXiv · 1808.10054

Frequency comb up- and down-conversion in a synchronously-driven $χ^{(2)}$ optical microresonator

Simon J. Herr·Victor Brasch·Jan Szabados·Ewelina Obrzud·Yuechen Jia·Steve Lecomte·Karsten Buse·Ingo Breunig·Tobias Herr
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Abstract

Optical frequency combs are key to optical precision measurements. While most frequency combs operate in the near-infrared regime, many applications require combs at mid-infrared, visible or even ultra-violet wavelengths. Frequency combs can be transferred to other wavelengths via nonlinear optical processes, however, this becomes exceedingly challenging for high-repetition rate frequency combs. Here, it is demonstrated that a synchronously driven high-Q microresonator with a second-order optical nonlinearity can efficiently convert high-repetition rate near-infrared frequency combs to visible, ultra-violet and mid-infrared wavelengths providing new opportunities for microresonator and electro-optic combs in applications including molecular sensing, astronomy, and quantum optics.

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Simon J. Herr, Victor Brasch, Jan Szabados, Ewelina Obrzud, Yuechen Jia, Steve Lecomte, Karsten Buse, Ingo Breunig, Tobias Herr. 2018-09-04. Frequency comb up- and down-conversion in a synchronously-driven $χ^{(2)}$ optical microresonator. https://doi.org/10.1364/ol.43.005745

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