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Co-Aperture Transceiving of Two Combined Beams Based on Adaptive Fiber Coupling Control
Li, Feng1; Geng, Chao2; Li, Xinyang1; Qiu, Qi1
Source PublicationIEEE Photonics Technology Letters
Volume27Issue:17Pages:1787-1790
2015
Language英语
ISSN1041-1135
DOI10.1109/LPT.2015.2438172
Indexed BySCI ; Ei
WOS IDWOS:000358698200001
Subtype期刊论文
AbstractWe 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.; 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.
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Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/6420
Collection自适应光学技术研究室(八室)
Corresponding AuthorLi, Xinyang
Affiliation1. 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
GB/T 7714
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.
APA Li, Feng,Geng, Chao,Li, Xinyang,&Qiu, Qi.(2015).Co-Aperture Transceiving of Two Combined Beams Based on Adaptive Fiber Coupling Control.IEEE Photonics Technology Letters,27(17),1787-1790.
MLA Li, Feng,et al."Co-Aperture Transceiving of Two Combined Beams Based on Adaptive Fiber Coupling Control".IEEE Photonics Technology Letters 27.17(2015):1787-1790.
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