Mode Conversion/Splitting in Multimode Waveguides Based on Invariant Engineering

被引：18
作者：
Chien, Kai-Hsun [1 ]
Yeih, Chi-Shung [1 ]
Tseng, Shuo-Yen [1 ,2 ]
机构：
[1] Natl Cheng Kung Univ, Dept Photon, Tainan 701, Taiwan
[2] Natl Cheng Kung Univ, Adv Optoelect Technol Ctr, Tainan 701, Taiwan
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2013年 / 31卷 / 21期
关键词：
Coupled mode analysis; gratings; multimode waveguide; optical beam splitting; optical planar waveguides; GENERATED PLANAR HOLOGRAMS; OPTICAL-FIBER; CAPACITY; COUPLERS; LIMITS;
D O I：
10.1109/JLT.2013.2283032
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We discuss mode conversion and splitting in multimode waveguides based on Lewis-Riesenfeld invariant theory. The design of mode converters/splitters using the dynamical invariant is discussed. Closed form expressions for the modal power at the output for converter/splitter design are derived. Various design approaches are discussed and assessed by beam propagation simulations. We show that the invariant-based engineering scheme reduces device length as compared to the common adiabatic scheme.
引用
收藏
页码：3387 / 3394
页数：8
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