All-fiber power combiner for coherent beam combination using large-mode-area fiber

被引:0
|
作者
Shi, Pengyang [1 ]
Zhang, Xinhai [1 ]
机构
[1] Southern Univ Sci & Technol, 1088 Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China
关键词
LASER;
D O I
暂无
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A 19-core signal fiber combiner is modeled and simulated for high power coherent beam combination using, large-mode-area fiber. Three critical structural parameters of the combiner (cladding/core diameter ratio eta, taper ratio gamma and taper length 1,) are analyzed to find the requirements on the fabrication process for preserving beam quality (BQ) of output combined beam. The optimal BQ=1.1 is obtain when eta=4, gamma=3.5 and L=8cm with the power transmission efficiency above 99%. In addition, a 9-core fiber we fabricated is introduced and tapered following the above value.
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页数:3
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