Interferometry within a resonant cavity with standing wave detection

Josef Lazar; Miroslava Holá; Jan Hrabina; Jindřich Oulehla; Ondřej Číp

doi:10.1117/12.2063936

22 August 2014 Interferometry within a resonant cavity with standing wave detection

Josef Lazar, Miroslava Holá, Jan Hrabina, Jindřich Oulehla, Ondřej Číp

Proceedings Volume 9286, Second International Conference on Applications of Optics and Photonics; 92860C (2014) https://doi.org/10.1117/12.2063936
Event: Second International Conference on Applications of Optics and Photonics, 2014, Aveiro, Portugal

Abstract

We present a measuring technique for displacement and position sensing over a limited range with detection of standingwave pattern inside of a passive Fabry-Perot cavity. The concept considers locking of the laser optical frequency and the length of the Fabry-Perot cavity in resonance. Sensing of the interference maxima and minima within the cavity along the beam axis has been tested and proven with a low loss photoresistive photodetector based on a thin polycrystalline silicon layer.

Citation Download Citation

Josef Lazar, Miroslava Holá, Jan Hrabina, Jindřich Oulehla, and Ondřej Číp "Interferometry within a resonant cavity with standing wave detection", Proc. SPIE 9286, Second International Conference on Applications of Optics and Photonics, 92860C (22 August 2014); https://doi.org/10.1117/12.2063936

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