Monitor of mirror distance of Fabry-Perot cavity by the use of stabilized femtosecond laser comb

0352204 - ÚPT 2011 RIV US eng C - Conference Paper (international conference)
Šmíd, Radek - Ježek, Jan - Buchta, Zdeněk - Čížek, Martin - Mikel, Břetislav - Lazar, Josef - Číp, Ondřej
Monitor of mirror distance of Fabry-Perot cavity by the use of stabilized femtosecond laser comb.
17th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics (Proceedings of SPIE Vol. 7746). Bellingham: SPIE, 2010, 77460I: 1-8. ISBN 978-0-8194-8236-5.
[Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics /17./. Liptovsky Jan (SK), 06.09.2010]
R&D Projects: GA MŠMT(CZ) LC06007; GA MPO 2A-1TP1/127; GA ČR GAP102/10/1813
Institutional research plan: CEZ:AV0Z20650511
Keywords : length standard * femtosecond laser * stabilization * Fabry-Perot cavity
Subject RIV: BH - Optics, Masers, Lasers

The use of an ultra low expansion cavity plays a crucial role in laser stabilization, and in atomic or ion clocks. We propose an easy method of precise monitoring of optical path distance in Fabry-Perot interferometer. The spacing of mirrors of the Fabry-Perot interferometer in ambient air represents the optical path distance referenced to stable optical frequency of the femtosecond mode-locked laser. With the help of highly selective optical filter it is possible to get only a few of separate spectral components of laser comb. Optical path distance is transfered to optical frequency of the comb component and through the repetition frequency of the laser to the radio-frequency domain. Repetition frequency of the laser can be monitored with the uncertainty referenced to the any local oscillator or through the GPS to the atomic clock standard.
Permanent Link: http://hdl.handle.net/11104/0191771