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Proceedings Paper

The theoretical research on fundamental mode 20/400-μm fiber laser for directed-energy application
Author(s): Xuejiao Wang; Yusheng Huang; Dongxian Geng
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Paper Abstract

A theoretical research of fiber laser in single mode operation was presented to evaluate laser targeting characteristics, namely, the directed-energy application. The beam propagation efficiency (BPE) was chosen as the factor to assess the performance of the lasers. Many parameters were studied about their impacts on BPE, including the lens parameters and the transmitting distance. As a result, it was found that the defocus quantity (DQ) valve had a huge impact on directed-energy performance. Given a proper DQ value, the BPE can reach a near limit value. By comparing the BPE performances under different transmission distances, we concluded that when target radius was set to be 5 cm, the ideal state (BPE>90%) of directed-energy transmission can be achieved within a certain distance of 7 km.

Paper Details

Date Published: 19 November 2019
PDF: 8 pages
Proc. SPIE 11185, Optical Design and Testing IX, 111851B (19 November 2019); doi: 10.1117/12.2538467
Show Author Affiliations
Xuejiao Wang, China Electronics Technology Group Corp. (China)
Yusheng Huang, Tsinghua Univ. (China)
Dongxian Geng, Analysis and Test Ctr. of Sichuan Province (China)

Published in SPIE Proceedings Vol. 11185:
Optical Design and Testing IX
Yongtian Wang; Pablo Benítez; Osamu Matoba, Editor(s)

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