Study of Aberration Correction in Light Path of Adaptive Optical System

Pengzhi, 蒋鹏志 Jiang; Haotong, 马浩统 Ma; Yongchao, 邹永超 Zou; Shaojun, 杜少军 Du

doi:10.3788/aos201131.1214002

Cited by 3 publications

(3 citation statements)

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“…In order to control the optical quality of the telescope, we need a simple and with high accuracy method. This article proposed phase retrieval wavefront sensor (PRWS) technology [4][5][6][7][8] based on the focal plane image information wavefront solver in the focal plane estimated wavefront technology, whose principle is given by sampling a number of the defocus images [9][10][11][12][13][14] ; solve the optical system wavefront by Fourier optical methods. System hardware is simple, free from the environment (especially the vibration) influence of optical components and systems for dynamic estimation, real-time display of measurements [7,15] , which has good application prospects in the field of the optical processing, system alignment, active optics, adapt optics et al…”

Section: ． Introductionmentioning

confidence: 99%

Spherical mirror testing by phase retrieval wavefront sensor

Wang

2016

Optik

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In order to verify the estimated wavefront ability of the phase retrieval wavefront sensor (PRWS), a measured spherical mirror of experiment platform was set up with the method of PRWS. PRWS technology is based on the focal plane image information wavefront solver in the focal plane wavefront measured technology, whose principle is sampling a number of the given defocus images; get the wavefront phase information by solving the optical system wavefront with Fourier optical diffractive theory and mathematics optimization. In order to validate the veracity of PRWS, both the PRWS measurement results and ZYGO interferometer measurement results were compared; experimental results demonstrate that agreement is obtained among the errors distribution, PV value and RMS value of ZYGO interferometer, so PRWS technology can effectively estimate the aberrations of spherical mirror.

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Section: ． Introductionmentioning

confidence: 99%

Spherical mirror testing by phase retrieval wavefront sensor

Wang

2016

Optik

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“…[1][2][3] The system is composed of wavefront sensor, wavefront controller and wavefront corrector. Adaptive optics system often work at night due to the influence of the sky background, which greatly limits the system's working hours and lead to discontinuous observational data.…”

Section: Introductionmentioning

confidence: 99%

“…It has also proved that the optimal threshold 7 is T optimal μ 3σ; (2) where μ is the mean value of the background and σ is the noise variance.…”

Section: Introductionmentioning

confidence: 99%

The implementation of adaptive optics wavefront spot extraction on FPGA

Zhang

Chen

2013

J. Opt. Technol.

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The skylight background and the noise generated by the detection device system in adaptive optical system have a great impact for the spot detecting precision. In order to eliminate their affects, a wavefront spot signal extraction system is designed and implemented in this paper, and the effect of the extraction and the precision are tested in the indoor adaptive optics precision tracking system. The experiment results show that the design is better in extracting the target spot; the centroid accuracy after processed is higher. In the other hand, the processing time delay is small, which can meet the adaptive optics system's real time requirement.

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Spherical Mirror Estimation Using Phase Retrieval Wavefront Sensor Technology

Wang

et al. 2013

Lecture Notes in Electrical Engineering

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Study of Aberration Correction in Light Path of Adaptive Optical System

Cited by 3 publications

References 0 publications

Spherical mirror testing by phase retrieval wavefront sensor

Spherical mirror testing by phase retrieval wavefront sensor

The implementation of adaptive optics wavefront spot extraction on FPGA

Spherical Mirror Estimation Using Phase Retrieval Wavefront Sensor Technology

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