Affiliation:
1. Shandong Normal University
2. Anhui Normal University
3. Chizhou University
4. Soochow University
5. University of Groningen
Abstract
The fiber-coupling efficiency of signal beams is crucial in free space optical (FSO) communications. Herein, we derived an analytical expression for the fiber-coupling efficiency of partially coherent flat-topped beams propagating through atmospheric turbulence based on the cross-spectral density function. Our numerical calculation results showed that the fiber-coupling efficiency of partially coherent flat-topped beams in a turbulent atmosphere could be enhanced by increasing the beam order. Under the same conditions, the fiber-coupling efficiency of the high-order partially coherent flat-topped beams was larger than those connected to the Gaussian and Gaussian Schell-model (GSM) beams. Our results will improve the quality of partially coherent beams used in FSO communications.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Innovation Group of Jinan
Natural Science Foundation of Shandong Province
Local Science and Technology Development Project of the Central Government
Shandong Provincial Key Laboratory of Optics and Photonic Devices
National College Students Innovation and Entrepreneurship Training Program
Undergraduate Research Foundation of Shandong Normal University
Subject
Atomic and Molecular Physics, and Optics
Cited by
10 articles.
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