Double wedge prism based beam deflector for precise laser beam steering

The Review of Scientific Instruments
Krzysztof TyszkaTomasz Bilaszewski

Abstract

Aiming to increase laser beam pointing stability required in interferometric measurements, we designed a laser beam deflector intended for active laser beam stabilization systems. The design is based on two wedge-prisms: the deflecting wedge driven by a tilting piezo-platform and the fixed wedge to compensate initial beam deflection. Our design allows linear beam steering, independently in the horizontal or vertical direction, with resolution of less than 1 μrad in a range of more than 100 μrad, and no initial deflection of the beam. Moreover, the ratio of the output beam deflection angle and the wedge tilt angle is less than 0.1; therefore, the noise influence is significantly reduced in comparison to standard mirror-based deflectors. The theoretical analyses support the designing process and can serve as a guide to wedge-prism selection. The experimental results are in agreement with theory and confirm the advantages of the presented double wedge system.

References

Oct 28, 2006·Applied Optics·Anhu LiZhu Luan
Feb 21, 2008·Applied Optics·J A Thomas, Y Fainman
Jul 10, 2006·Optics Express·Neil R SmithJason Heikenfeld
Jan 25, 2012·Applied Optics·Anhu LiLiren Liu
Jul 21, 2015·Applied Optics·Anhu LiLiren Liu
Oct 21, 2015·Optics Express·Soraya TerrabVictor M Bright
Feb 3, 2016·Applied Optics·Gilles RoySimon Roy

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Citations

Jun 30, 2019·Applied Optics·Shian-Fu LaiChi-Feng Lee
Sep 7, 2018·The Review of Scientific Instruments·Krzysztof Tyszka, Marek Dobosz
Mar 27, 2019·Scientific Reports·Chao LiuQiong-Hua Wang
Oct 3, 2019·The Review of Scientific Instruments·Zhangfan XuWeiqing Huang

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