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Frequency comb up- and down-conversion in synchronously driven χ(2) optical microresonators

 
: Herr, Simon J.; Brasch, Victor; Szabados, Jan; Obrzud, Ewelina; Jia, Yuechen; Lecomte, Steve; Buse, Karsten; Breunig, Ingo; Herr, Tobias

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Optics Letters 43 (2018), Nr.23, S.5745-5748
ISSN: 0146-9592
Englisch
Zeitschriftenaufsatz
Fraunhofer IPM ()

Abstract
Optical frequency combs are key to optical precision measurements. While most frequency combs operate in the near-infrared (NIR) regime, many applications require combs at mid-infrared (MIR), visible (VIS), or even ultra-violet (UV) 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 NIR frequency combs to VIS, UV, and MIR wavelengths, providing new opportunities for microresonator and electro-optic combs in applications including molecular sensing, astronomy, and quantum optics.

: http://publica.fraunhofer.de/dokumente/N-519627.html