Modified plenoptic camera for phase and amplitude wavefront sensing

Chensheng Wu; Christopher C. Davis

doi:10.1117/12.2026259

25 September 2013 Modified plenoptic camera for phase and amplitude wavefront sensing

Chensheng Wu, Christopher C. Davis

Proceedings Volume 8874, Laser Communication and Propagation through the Atmosphere and Oceans II; 88740I (2013) https://doi.org/10.1117/12.2026259
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

Shack-Hartmann sensors have been widely applied in wavefront sensing. However, they are limited to measuring slightly distorted wavefronts whose local tilt doesn’t surpass the numerical aperture of its micro-lens array and cross talk of incident waves on the mrcro-lens array should be strictly avoided. In medium to strong turbulence cases of optic communication, where large jitter in angle of arrival and local interference caused by break-up of beam are common phenomena, Shack-Hartmann sensors no longer serve as effective tools in revealing distortions in a signal wave. Our design of a modified Plenoptic Camera shows great potential in observing and extracting useful information from severely disturbed wavefronts. Furthermore, by separating complex interference patterns into several minor interference cases, it may also be capable of telling regional phase difference of coherently illuminated objects.

Citation Download Citation

Chensheng Wu and Christopher C. Davis "Modified plenoptic camera for phase and amplitude wavefront sensing", Proc. SPIE 8874, Laser Communication and Propagation through the Atmosphere and Oceans II, 88740I (25 September 2013); https://doi.org/10.1117/12.2026259

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