Designing a high-efficiency coupling system to couple a hollow Gaussian beam into single-mode fiber

The low efficiency of coupling a hollow Gaussian beam into single-mode fiber terribly decreases the transmission efficiency of an optical communication system. In this paper, a coupling system containing a shaping lens and a coupling lens is designed based on the vector theory of refraction. The sim...

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Bibliographic Details
Published in:Applied optics (2004) 2021-12, Vol.60 (34), p.10617
Main Authors: Fu, Shuaikang, Pan, Yinqing, Li, Jiong, Jiang, Ping, Caiyang, Weinan, Yang, Huajun
Format: Article
Language:English
Subjects:
Chamfering
Communications systems
Coupling
Efficiency
Gaussian beams (optics)
Lenses
Optical communication
Sunglasses
Transmission efficiency
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Summary:The low efficiency of coupling a hollow Gaussian beam into single-mode fiber terribly decreases the transmission efficiency of an optical communication system. In this paper, a coupling system containing a shaping lens and a coupling lens is designed based on the vector theory of refraction. The simulation results show that our coupling system can improve coupling efficiency to 81.45%, and the efficiency can still reach 74.73% even though chamfering and other factors are considered. This paper may not only provide engineers with a more efficient coupling system but also provide designers with ideas of hollow-solid (or solid-hollow) beam shaping systems.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.443794