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题名:
Co-Aperture Transceiving of Two Combined Beams Based on Adaptive Fiber Coupling Control
作者: Li, Feng1; Geng, Chao2; Li, Xinyang1; Qiu, Qi1
刊名: IEEE Photonics Technology Letters
出版日期: 2015
卷号: 27, 期号:17, 页码:1787-1790
学科分类: Bandwidth - Drops - Fiber lasers - Fiber optics - Fibers - Gradient methods - Laser beams - Mean square error - Optical collimators - Polarization-maintaining fiber - Stochastic systems
DOI: 10.1109/LPT.2015.2438172
通讯作者: Li, Xinyang
文章类型: 期刊论文
中文摘要: We demonstrate the reception and transmission of fiber laser beams using two-element adaptive fiber-optics collimator (AFOC) array under simulated turbulences. Coupling efficiency of laser beam from free space into polarization maintaining fibers is optimized with tip/tilt aberration correction. According to the principle of optical reciprocity, tip/tilt errors of the phase-conjugated collimating laser beams are compensated simultaneously. The average of normalized coupling efficiency of one AFOC increases from 0.61 without control to 0.85 under control and 0.57 to 0.85 for another. The average of diffraction-pattern centroid's deviation of two outgoing combined beams in the far-field drops from 17.5μ rad to 2.35μ rad, and mean-square-error value drops from 6.59 to 1.35μ rad. Control bandwidth of 30 Hz for tip/tilt correction is achieved with computer-based stochastic parallel gradient descent controller with update rate of 1.15 kHz. Results indicate the potential value of the AFOC array in fiber coupling, laser communication and beam projection applications. © 1989-2012 IEEE.
英文摘要: We demonstrate the reception and transmission of fiber laser beams using two-element adaptive fiber-optics collimator (AFOC) array under simulated turbulences. Coupling efficiency of laser beam from free space into polarization maintaining fibers is optimized with tip/tilt aberration correction. According to the principle of optical reciprocity, tip/tilt errors of the phase-conjugated collimating laser beams are compensated simultaneously. The average of normalized coupling efficiency of one AFOC increases from 0.61 without control to 0.85 under control and 0.57 to 0.85 for another. The average of diffraction-pattern centroid's deviation of two outgoing combined beams in the far-field drops from 17.5μ rad to 2.35μ rad, and mean-square-error value drops from 6.59 to 1.35μ rad. Control bandwidth of 30 Hz for tip/tilt correction is achieved with computer-based stochastic parallel gradient descent controller with update rate of 1.15 kHz. Results indicate the potential value of the AFOC array in fiber coupling, laser communication and beam projection applications. © 1989-2012 IEEE.
收录类别: SCI ; Ei
项目资助者: National Natural Science Foundation of China [61205069, 61138007]
语种: 英语
WOS记录号: WOS:000358698200001
ISSN号: 1041-1135
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6420
Appears in Collections:自适应光学技术研究室(八室)_期刊论文

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作者单位: 1. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China
2. School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu, China

Recommended Citation:
Li, Feng,Geng, Chao,Li, Xinyang,et al. Co-Aperture Transceiving of Two Combined Beams Based on Adaptive Fiber Coupling Control[J]. IEEE Photonics Technology Letters,2015,27(17):1787-1790.
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