Comb mode filtering silver mirror cavity for spectroscopic distance measurement

0463111 - ÚPT 2017 RIV US eng J - Journal Article
Šmíd, Radek - Hänsel, A. - Pravdová, Lenka - Sobota, Jaroslav - Číp, Ondřej - Bhattacharya, N.
Comb mode filtering silver mirror cavity for spectroscopic distance measurement.
Review of Scientific Instruments. Roč. 87, č. 9 (2016), 093107:1-8. ISSN 0034-6748. E-ISSN 1089-7623
R&D Projects: GA ČR(CZ) GPP102/12/P962; GA ČR GB14-36681G; GA MŠMT(CZ) LO1212; GA MŠMT ED0017/01/01
Institutional support: RVO:68081731
Keywords : optical frequency comb * femtosecond laser * long * air
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 1.515, year: 2016

In this work we present a design of an external optical cavity based on Fabry-Perot etalons applied to a 100 MHz Er-doped fiber optical frequency comb working at 1560 nm to increase its repetition frequency. A Fabry-Perot cavity is constructed based on a transportable cage system with two silver mirrors in plano-concave geometry including the mode-matching lenses, fiber coupled collimation package and detection unit. The system enables full 3D angle mirror tilting and x-y off axis movement as well as distance between the mirrors. We demonstrate the increase of repetition frequency by direct measurement of the beat frequency and spectrally by using the virtually imaged phased array images.
Permanent Link: http://hdl.handle.net/11104/0262389