Investigation on adiabatic mode evolution in a few-mode optical waveguide

被引：3
|
作者：
Cao, Guo-Dong [1 ]
Wang, Quan [1 ,2 ]
Yan, Xiaohong [3 ]
Chen, Ming-Yang [1 ]
机构：
[1] Jiangsu Univ, Sch Mech Engn, Inst Optoelect & Opt Commun Technol, Zhenjiang 212013, Peoples R China
[2] Chinese Acad Sci, State Key Lab Transducer Technol, Shanghai 200050, Peoples R China
[3] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2018年 / 124卷 / 05期
基金：
中国国家自然科学基金;
关键词：
ASYMMETRIC Y-JUNCTIONS; BROAD-BAND; BEAM-PROPAGATION; FIBER; MULTI/DEMULTIPLEXER; CONVERTERS; DESIGN;
D O I：
10.1007/s00340-018-6962-5
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The mode-conversion characteristics of a few-mode optical waveguide based on adiabatic mode evolution are investigated. The mode-conversion efficiency and cross talks of the configuration are found dependent on the position and angle between the assistant waveguide and the main waveguide, and also the size of the assistant waveguide. By setting the bottoms of the two waveguides at the same plane, the symmetry of the configuration can be broken. The configuration is able to convert each mode to a higher order or lower order mode by launching light from different ports. In particular, mode conversion between the two degenerated LP ii modes can be achieved with wide bandwidth.
引用
收藏
页数：8
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