| Citation: | MAO Hao-di, LI Yuan-yang, GUO Jin. Wavefront reconstruction for extended targets under strong atmospheric turbulence[J]. Chinese Optics. doi: 10.37188/CO.2023-0213
|
In order to solve the problem of wavefront detection without ideal point beacon in adaptive optical system under strong turbulent environment, this paper proposes a method to detect the optical field information of extended beacons by using a Plenoptic sensor. The optical field imaging principle, wavefront phase reconstruction algorithm and error influence rule of extended beacons are studied. The imaging process of the extended beacon on the optical field sensor is simplified by using the equivalence method, and the optical field images are rearranged in a specific way. The wavefront reconstruction of 0° field of view is realized by image cross-correlation method and Zernike mode method. Simulation studies were carried out on error influencing factors such as different input aberration coefficients, the number of single-row microlens elements and noise. The results show that: When the input aberration is less than 6.5λ, the wavefront reconstruction accuracy is about 0.08λ. For the image detector with image resolution of 1080×1080 and pixel size of 5.5 μm, the wavefront reconstruction accuracy is the highest when the number of single row microlens units is between 40 and 50, and the system noise hardly affects the accuracy. Finally, an extended beacon wavefront detection system is built to reconstruct the four aberration wavefronts of 0° field of view by detecting the extended beacon. The wavefront reconstruction accuracy of the experimental system is about 0.04λ, which basically meets the wavefront detection requirements of the adaptive optical system.
| [1] |
BABCOCK H W. The possibility of compensating astronomical seeing[J]. Publications of the Astronomical Society of the Pacific, 1953, 65(386): 229-236.
|
| [2] |
SPRANGLE P, TING A, PENANO J, et al. Incoherent combining and atmospheric propagation of high-power fiber lasers for directed-energy applications[J]. IEEE Journal of Quantum Electronics, 2009, 45(2): 138-148. doi: 10.1109/JQE.2008.2002501
|
| [3] |
CAMPBELL H I, GREENAWAY A H. Wavefront sensing: from historical roots to the state-of-the-art[J]. EAS Publications Series, 2006, 22: 165-185. doi: 10.1051/eas:2006131
|
| [4] |
朱沁雨, 陈梅蕊, 陆焕钧, 等. 微透镜阵列衍射效应对夏克一哈特曼波前探测器的影响分析[J]. 中国光学(中英文),2023,16(1):94-102. doi: 10.37188/CO.2022-0176
ZHU Q Y, CHEN M R, LU H J, et al. Analysis of influence of diffraction effect of microlens array on Shack-Hartmann wavefront sensor[J]. Chinese Optics, 2023, 16(1): 94-102. (in Chinese). doi: 10.37188/CO.2022-0176
|
| [5] |
王海铭, 权佳宁, 葛宝臻. 适用于近地面成像的自适应光学系统研究[J]. 中国光学(中英文),2023,16(4):843-852. doi: 10.37188/CO.2022-0230
WANG H M, QUAN J N, GE B ZH. An adaptive optics system suitable for near-ground imaging[J]. Chinese Optics, 2023, 16(4): 843-852. (in Chinese). doi: 10.37188/CO.2022-0230
|
| [6] |
KO J, DAVIS C C. Comparison of the plenoptic sensor and the Shack-Hartmann sensor[J]. Applied Optics, 2017, 56(13): 3689-3698. doi: 10.1364/AO.56.003689
|
| [7] |
ADELSON E H, WANG J Y A. Single lens stereo with a plenoptic camera[J]. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1992, 14(2): 99-106. doi: 10.1109/34.121783
|
| [8] |
RODRÍGUEZ-RAMOS M J, CASTELLA F B, NAVA P F, et al. Wavefront and distance measurement using the CAFADIS camera[J]. Proceedings of SPIE, 2008, 7015: 70155Q. doi: 10.1117/12.789380
|
| [9] |
LV Y, ZHANG X ZH, MA H T, et al. Large viewing field wavefront sensing by using a lightfield system[J]. Proceedings of SPIE, 2013, 8905: 89052T. doi: 10.1117/12.2035212
|
| [10] |
JIANG P ZH, XU J P, LIANG Y H, et al. Plenoptic camera wavefront sensing with extended sources[J]. Journal of Modern Optics, 2016, 63(16): 1573-1578. doi: 10.1080/09500340.2016.1162336
|
| [11] |
ESLAMI M, WU CH SH, RZASA J, et al. Using a plenoptic camera to measure distortions in wavefronts affected by atmospheric turbulence[J]. Proceedings of SPIE, 2012, 8517: 85170S. doi: 10.1117/12.943038
|
| [12] |
WU CH SH, DAVIS C C. Modified plenoptic camera for phase and amplitude wavefront sensing[J]. Proceedings of SPIE, 2013, 8874: 88740I.
|
| [13] |
WU CH SH, KO J, NELSON W, et al. Phase and amplitude wave front sensing and reconstruction with a modified plenoptic camera[J]. Proceedings of SPIE, 2014, 9224: 92240G.
|
| [14] |
WU CH SH, KO J, DAVIS C C. Determining the phase and amplitude distortion of a wavefront using a plenoptic sensor[J]. Journal of the Optical Society of America A, 2015, 32(5): 964-978. doi: 10.1364/JOSAA.32.000964
|
| [15] |
WU CH SH, KO J, DAVIS C C. Plenoptic mapping for imaging and retrieval of the complex field amplitude of a laser beam[J]. Optics Express, 2016, 24(26): 29852-29871. doi: 10.1364/OE.24.029852
|
| [16] |
WU CH SH, KO J, DAVIS C C. Complex wavefront sensing with a plenoptic sensor[J]. Proceedings of SPIE, 2016, 9979: 99790Y.
|
| [17] |
WU CH SH, KO J, DAVIS C C. Imaging through strong turbulence with a light field approach[J]. Optics Express, 2016, 24(11): 11975-11986. doi: 10.1364/OE.24.011975
|
| [18] |
WU CH SH, KO J, DAVIS C C. Using a plenoptic sensor to reconstruct vortex phase structures[J]. Optics Letters, 2016, 41(14): 3169-3172. doi: 10.1364/OL.41.003169
|
| [19] |
WU CH SH, PAULSON D A, RZASA J R, et al. Comparison between the plenoptic sensor and the light field camera in restoring images through turbulence[J]. OSA Continuum, 2019, 2(9): 2511-2525. doi: 10.1364/OSAC.2.002511
|
| [20] |
KO J, WU CH SH, DAVIS C C. Implementation of a rapid correction algorithm for adaptive optics using a plenoptic sensor[J]. Proceedings of SPIE, 2016, 9979: 99790O.
|
| [21] |
HU J T, CHEN T, LIN X D, et al. Improved wavefront reconstruction and correction strategy for adaptive optics system with a plenoptic sensor[J]. IEEE Photonics Journal, 2021, 13(4): 1-8.
|
| [22] |
王志冲. 强湍流下激光通信波前光场传感技术研究[D]. 长春: 中国科学院长春光学精密机械与物理研究所, 2022.
WANG ZH CH. Research on plenoptic wavefront sensing technique of free space laser communication under strong turbulence[D]. Changchun: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 2022. (in Chinese).
|
| [23] |
LARDIÈRE O, CONAN R, CLARE R, et al. Performance comparison of centroiding algorithms for laser guide star wavefront sensing with extremely large telescopes[J]. Applied Optics, 2010, 49(31): G78-G94. doi: 10.1364/AO.49.000G78
|
| [24] |
NOLL R J. Zernike polynomials and atmospheric turbulence[J]. Journal of the Optical Society of America, 1976, 66(3): 207-211. doi: 10.1364/JOSA.66.000207
|
Figures(18) / Tables(5)
DownLoad:
