Free Space to Single Mode Fiber Coupling Efficiency Improvement using Wave-front Sensor-less Adaptive Optics

2016 ◽  
Author(s):  
Beibei Li ◽  
Yan Li ◽  
Donghao Zheng ◽  
Deming Kong ◽  
Erhu Chen ◽  
...  
Keyword(s):  
Wave Front ◽  
Adaptive Optics ◽  
Free Space ◽  
Coupling Efficiency ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Efficiency Improvement ◽  
Fiber Coupling

Single-mode fiber coupling efficiency with graded-index rod lenses

1994 ◽  
Vol 33 (16) ◽  
pp. 3440 ◽  
Author(s):  
Robert W. Gilsdorf ◽  
Joseph C. Palais
Keyword(s):  
Coupling Efficiency ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Fiber Coupling ◽  
Graded Index

Free-space to single-mode fiber coupling efficiency with optical system aberration and fiber positioning error under atmospheric turbulence

2021 ◽  
Author(s):  
Yiming Bian ◽  
Yan Li ◽  
Erhu Chen ◽  
Wei Li ◽  
Xiaobin Hong ◽  
...  
Keyword(s):  
Atmospheric Turbulence ◽  
Optical System ◽  
Free Space ◽  
Fiber Optic ◽  
Coupling Efficiency ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Positioning Error ◽  
Free Space Optical ◽  
Statistical Expectation

Abstract Benefiting from the rapid development of fiber-optic devices, high-speed free-space optical communication systems have recently used fiber-optic components. The received laser beam in such a system couples into single-mode fiber (SMF) at the input of the receiver module. This work is oriented to common problems in actual free-space optical coupling systems, such as atmospheric turbulence, optical system aberration, and fiber positioning error. We derive the statistical expectation models of SMF coupling efficiency with optical system aberration in the presence of atmospheric turbulence and the statistical expectation models of SMF coupling efficiency with fiber positioning error in the presence of atmospheric turbulence. The influences of optical system aberration and fiber positioning error on the coupling efficiency under different turbulence strengths are also analyzed in this paper.

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