Multicore chalcogenide photonic crystal fibers for large mode area and mode shaping

被引：7
|
作者：
Yi, Changshen [1 ]
Zhang, Peiqing [1 ,2 ]
Dai, Shixun [1 ]
Wang, Xunsi [1 ]
Wu, Yehao [1 ]
Xu, Tiefeng [1 ]
Nie, Qiuhua [1 ]
机构：
[1] Ningbo Univ, Infrared Mat & Devices Lab, Ningbo 315211, Zhejiang, Peoples R China
[2] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2014年 / 311卷
基金：
中国国家自然科学基金;
关键词：
Multicore photonic crystal fiber; Phase locking; Mode shaping; Chalcogenide glasses; PHASE SUPERMODE SELECTION; LASER; BEAM; LOCKING; DESIGN;
D O I：
10.1016/j.optcom.2013.08.080
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Phase locking and mode shaping in multicore Ge20Sb15S65 chalcogenide photonic crystal fibers are proposed and demonstrated. By manipulating the geometrical structure of the fibers, a large mode area of 1962 mu m(2) resulting from in-phase supermodes and equal amplitudes was obtained, which can significantly reduce the nonlinear damage in chalcogenide fibers in the infrared spectrum. With the coherent beam combining technology of multicore photonic crystal fibers, the far-field combining beam exhibits high brightness and high beam quality. Calculations show that with good phase locking and mode shaping, a seven-core photonic crystal fiber can achieve 49 times enhanced intensity compared with single-core fibers. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：270 / 274
页数：5
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