An approach of waveguide mode selection based on the thin-film spatial filters

被引：2
|
作者：
Luo, Zhaoming [1 ]
Chen, Min [1 ]
Liu, Jing [1 ]
Lei, Dajun [2 ]
机构：
[1] Hunan Inst Sci & Technol, Coll Informat & Telecommun Engn, Yueyang 414004, Peoples R China
[2] Xiangnan Univ, Sch Elect Informat & Elect Engn, Chenzhou 423000, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2016年 / 365卷
基金：
中国国家自然科学基金;
关键词：
Waveguide; Mode selection; Spatial filter; HELICAL-CORE FIBER; OPERATION;
D O I：
10.1016/j.optcom.2015.12.009
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A novel approach is presented for waveguide mode selection by using thin-film spatial filters embedded in multimode waveguides. The waveguide modes are allowed to pass through the spatial filters if and when their mode angles fall within the angle-domain bandwidth of the filters. Consequently the waveguide modes are selectable with varied angle-domain bandwidth of the spatial filters. This approach is relatively simple, cost-effective and features good suppression effect of high-order modes, and is suitable for high-power laser systems. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：120 / 124
页数：5
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