Journal
JOURNAL OF LASER APPLICATIONS
Volume 29, Issue 3, Pages -Publisher
AMER INST PHYSICS
DOI: 10.2351/1.4985004
Keywords
fiber-coupling efficiency; Gaussian-beam; atmospheric turbulence; optical communication
Funding
- National Natural Science Foundation of China [91338116, 91438204]
- Foundation of Jilin Province Education Department [369, 366]
- Natural Science Youth Foundation of Chang Chun University of Science and Technology [WQNJJ-2016-15]
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The efficiency of Gaussian-wave light propagating in weak atmospheric turbulence coupled into a single model fiber is studied, and an approximation to the original mutual coherence function (MCF) in the coupling-efficiency expression is given to simplify the complexity of the efficiency calculation. The influence of the transmitting beam and turbulence parameters on the Gaussianbeam coupling-efficiency has also been evaluated. The numerical results show that the relative error of the expression with the approximate MCF referenced to the original Gaussian-wave fiber coupling efficiency representation is not more than 3.69%. It is anticipated that this work will be helpful in estimating the receiving performance and optimizing effective beam parameters at the transmitter in the design of a free-space laser communication system. (C) 2017 Laser Institute of America.
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