Broadband mode division multiplexer using all-fiber mode selective couplers

被引：109
作者：
Park, Kyung Jun [1 ]
Song, Kwang Yong [2 ]
Kim, Young Kie [3 ]
Lee, Jae Hyeon [3 ]
Kim, Byoung Yoon [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Phys, 291 Daehak Ro, Daejeon 34141, South Korea
[2] Chung Ang Univ, Dept Phys, 84 Heukseok Ro, Seoul 06974, South Korea
[3] KS Photon, 28 Daehak Ro, Daejeon 34186, South Korea
来源：
OPTICS EXPRESS | 2016年 / 24卷 / 04期
基金：
新加坡国家研究基金会;
关键词：
SINGLE-MODE; SDM TRANSMISSION; CORE; MULTIMODE; EXCITATION;
D O I：
10.1364/OE.24.003543
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report an all-fiber mode division multiplexer formed with cascaded mode selective couplers with significantly broadened bandwidth potentially spanning S, C and L band. This was achieved by matching the effective refractive indices over a wide wavelength range for the few mode fiber and the single mode fiber used in the coupler. The multiplexer provides high coupling efficiency (>55% for the worst case) for the 4 spatial modes over the entire wavelength range of 1515-1590 nm. The all-fiber construction provides mechanical stability. Experimental results for the coupling efficiency and the mode extinction ratio for each spatial mode are presented along with the far field radiation patterns. (C) 2016 Optical Society of America
引用
收藏
页码：3543 / 3549
页数：7
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