Repetition rate multiplication of a femtosecond frequency comb

Adam LEŠUNDÁK, Radek Šmíd, Dirk Voigt, Martin Čížek, Steven A. van den Berg and Ondřej Číp “Repetition rate multiplication of a femtosecond frequency comb”, talk, Photonics Prague 2014, The 7th International Conference on Photonics, Devices and Systems, 27-29 August 2014, Prague, Czech Republic.

Abstract:
This paper presents the progress in the development of two Fabry-Pérot filter cavities for repetition rate multiplication of two femtosecond frequency combs. The optical design of both setups consists of mode matching optics and a resonant cavity for the repetition rate multiplication. In one case, the cavity consists of two dielectric mirrors with near-zero group velocity dispersion and in the other of two silver coated mirrors. We demonstrate multiplication of a 1 GHz repetition rate to 10 GHz for a Ti:Sa femtosecond frequency comb with central wavelength around 820 nm and of 250 MHz repetition rate to 1 GHz for a Er-doped fiber femtosecond frequency comb with central wavelength around 1560 nm.

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