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Co-Aperture Transceiving of Two Combined Beams Based on Adaptive Fiber Coupling Control
Li, Feng1,2; Geng, Chao; Li, Xinyang1; Qiu, Qi1,2
Source PublicationIEEE PHOTONICS TECHNOLOGY LETTERS
Volume27Issue:17Pages:1787-1790
2015-09-01
Language英语
Indexed BySCI
WOS IDWOS:000358698200001
SubtypeArticle
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 17.5 mu rad to 2.35 mu rad, and mean-square-error value drops from 6.59 to 1.35 mu 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.
KeywordCo-aperture Transceiving Propagation Tip/tilt Control Adaptive Fiber-optics Collimator Fiber Coupling
WOS KeywordCOLLIMATORS ; ARRAY ; EFFICIENCY ; AMPLIFIERS ; ALGORITHM
WOS Research AreaEngineering ; Optics ; Physics
WOS SubjectEngineering, Electrical & Electronic ; Optics ; Physics, Applied
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Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/3669
Collection光电技术研究所被WoS收录文章
Affiliation1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
2.Univ Elect Sci & Technol China, Sch Optoelect Informat, Chengdu 610054, Peoples R 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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