Numerical analysis of wavefront measurement characteristics by using plenoptic camera

Yang Lv; Haotong Ma; Xuanzhe Zhang; Yu Ning; Xiaojun Xu

doi:10.1117/12.2230660

26 January 2016 Numerical analysis of wavefront measurement characteristics by using plenoptic camera

Yang Lv, Haotong Ma, Xuanzhe Zhang, Yu Ning, Xiaojun Xu

Proceedings Volume 9796, Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015; 97960M (2016) https://doi.org/10.1117/12.2230660
Event: Selected Proceedings of the Chinese Society for Optical Engineering Conferences held November 2015, 2015, Various, China

Abstract

To take advantage of the large-diameter telescope for high-resolution imaging of extended targets, it is necessary to detect and compensate the wave-front aberrations induced by atmospheric turbulence. Data recorded by Plenoptic cameras can be used to extract the wave-front phases associated to the atmospheric turbulence in an astronomical observation. In order to recover the wave-front phase tomographically, a method of completing the large Field Of View (FOV), multi-perspective wave-front detection simultaneously is urgently demanded, and it is plenoptic camera that possesses this unique advantage. Our paper focuses more on the capability of plenoptic camera to extract the wave-front from different perspectives simultaneously. In this paper, we built up the corresponding theoretical model and simulation system to discuss wave-front measurement characteristics utilizing plenoptic camera as wave-front sensor. And we evaluated the performance of plenoptic camera with different types of wave-front aberration corresponding to the occasions of applications. In the last, we performed the multi-perspective wave-front sensing employing plenoptic camera as wave-front sensor in the simulation. Our research of wave-front measurement characteristics employing plenoptic camera is helpful to select and design the parameters of a plenoptic camera, when utilizing which as multi-perspective and large FOV wave-front sensor, which is expected to solve the problem of large FOV wave-front detection, and can be used for AO in giant telescopes.

Citation Download Citation

Yang Lv, Haotong Ma, Xuanzhe Zhang, Yu Ning, and Xiaojun Xu "Numerical analysis of wavefront measurement characteristics by using plenoptic camera", Proc. SPIE 9796, Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015, 97960M (26 January 2016); https://doi.org/10.1117/12.2230660

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KEYWORDS

Cameras

Sensors

Numerical simulations

Telescopes

Device simulation

Zernike polynomials

Adaptive optics

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