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Proceedings Paper

Design and implementation of adaptive coupling system for making space light into single-mode fiber
Author(s): Xiaolong Li; Bo Liu; Baoluo Yan; Haifeng Liu; JiXuan Wu
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Paper Abstract

The adaptive coupling of making laser beam into single-mode fiber(SMF) plays an important role in free space optical communication. It’s the key point to the coupling of spatial light and single-mode fiber that finding the best position in the transverse plane of fiber precisely. An adaptive coupling system is proposed, which mainly comprises two-dimensional piezoelectric nanopositioning stage, driver, controller, photoelectric detector, coupling lens which is a closed loop control system. The adaptive coupling system uses optimized raster scanning algorithm to confirm the best position accurately. Theories of optimized raster scanning algorithm are expounded. Analysis results of experiment show that the adaptive coupling system proposed can search the best position automatically based on the power of the light which is coupled into the single-mode fiber. At the same time, it can correct the numerical deviation which is caused by atmospheric turbulence, and maintain high coupling efficiency which can improve the performance of the receiver.

Paper Details

Date Published: 14 February 2019
PDF: 5 pages
Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110481U (14 February 2019); doi: 10.1117/12.2522576
Show Author Affiliations
Xiaolong Li, Nankai Univ. (China)
Tianjin Key Lab. of Optoelectronic Sensor and Sensing Network Technology (China)
Bo Liu, Nankai Univ. (China)
Tianjin Key Lab. of Optoelectronic Sensor and Sensing Network Technology (China)
Baoluo Yan, Nankai Univ. (China)
Tianjin Key Lab. of Optoelectronic Sensor and Sensing Network Technology (China)
Haifeng Liu, Nankai Univ. (China)
Tianjin Key Lab. of Optoelectronic Sensor and Sensing Network Technology (China)
JiXuan Wu, Tianjin Key Lab. of Optoelectronic Sensor and Sensing Network Technology (China)
Tianjin Polytechnic Univ. (China)


Published in SPIE Proceedings Vol. 11048:
17th International Conference on Optical Communications and Networks (ICOCN2018)
Zhaohui Li, Editor(s)

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