A graded-index fiber taper design for laser diode to single-mode fiber coupling

被引:14
作者
He, YZ [1 ]
Shi, FG [1 ]
机构
[1] Univ Calif Irvine, Henry Samueli Sch Engn, Optoelect Packaging & Integrat Lab, Irvine, CA 92697 USA
关键词
lensed fiber; graded-index fiber; fiber taper; fiber-optic coupling; ABCD law; beam propagation method;
D O I
10.1016/j.optcom.2005.10.002
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A tapered graded-index fiber (GIF) structure is, for the first time, proposed for the efficient fiber-laser coupling. A simple analytical approach based oil the ABCD law is utilized to optimally design the parameters of the hemispherically-ended GIF taper. A wide-angle beam propagation method is then employed to compute the fiber mode fields transmitted through the fiber taper in order to evaluate the Coupling efficiency. By taking one commercially available GIF as an example, the effectiveness of the new design reported here is verified with a demonstration of high Coupling efficiency of nearly 90%. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:127 / 130
页数:4
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