Research on particle swarm optimization algorithm for space optical-fiber coupling auto-alignment platform

Sichen Lei; Youxin Nan; Yufeng Yang; Xizheng Ke

doi:10.1117/12.2538915

18 December 2019 Research on particle swarm optimization algorithm for space optical-fiber coupling auto-alignment platform

Sichen Lei, Youxin Nan, Yufeng Yang, Xizheng Ke

Author Affiliations +

Proceedings Volume 11340, AOPC 2019: Optical Fiber Sensors and Communication; 1134003 (2019) https://doi.org/10.1117/12.2538915
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

Abstract

Space light-fiber coupling technology converts spatially transmitted beams into fiber-optic transmissions, facilitating free-space optical communication, and fiber laser radar systems for signal processing in optical fibers. However, it is very difficult to accomplish precise alignment between the spatial beams and the fiber with micron level. In this paper, particle swarm optimization is applied to achieve two-dimensional auto-alignment between the spatial beams and the fiber. The theory proves that when the dimension takes 2, the number of groups is 10, the inertia weight is 0.4~0.8 and the number of iteration does not exceed 100, the particle swarm optimization can converge to the maximum coupling power, and the greater the weight of the inertia, the slower the convergence speed, the larger the search area. If the inertia weight decreases linearly with the number of iterations, the spatial light-fiber coupling auto-alignment function can be quickly completed while searching the alignment space in a wide range.

Citation Download Citation

Sichen Lei, Youxin Nan, Yufeng Yang, and Xizheng Ke "Research on particle swarm optimization algorithm for space optical-fiber coupling auto-alignment platform", Proc. SPIE 11340, AOPC 2019: Optical Fiber Sensors and Communication, 1134003 (18 December 2019); https://doi.org/10.1117/12.2538915

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KEYWORDS

Particle swarm optimization

Particles

Single mode fibers

Atmospheric optics

Free space optics

Optical alignment

Astronomical imaging

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