A whole-field double-shearing interferometer for the measurement of diffraction-limit wavefront

Rongwei Xu; Hongzhan Liu; Zhu Luan; Liren Liu

doi:10.1117/12.612528

12 September 2005 A whole-field double-shearing interferometer for the measurement of diffraction-limit wavefront

Rongwei Xu, Hongzhan Liu, Zhu Luan, Liren Liu

Proceedings Volume 5892, Free-Space Laser Communications V; 58921H (2005) https://doi.org/10.1117/12.612528
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

In the field of intersatellite communication, laser beam transmitted from the optical terminal is required to be highly collimated with diffraction-limit divergence. Then, the maximal wavefront aberration at the edge of exit pupil is about 0.3λ. In order to measure the diffraction-limit wavefront, we present a whole-field double-shearing interferometer based on double-shearing theory. In this paper, firstly, the principle and configuration of the interferometer is introduced. Then the theory of double shearing is discussed. At the same time, we extend the applications of the interferometer. Lastly, we present the simulations of interference fringes with different primary aberrations and give the experimental results for the measurement of diffraction-limit wavefront.

Citation Download Citation

Rongwei Xu, Hongzhan Liu, Zhu Luan, and Liren Liu "A whole-field double-shearing interferometer for the measurement of diffraction-limit wavefront", Proc. SPIE 5892, Free-Space Laser Communications V, 58921H (12 September 2005); https://doi.org/10.1117/12.612528

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KEYWORDS

Wavefronts

Interferometers

Wavefront aberrations

Collimation

Shearing interferometers

Monochromatic aberrations

Laser communications

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