Traveling wave-like Fabry-Perot resonator-based add-drop filters

被引：33

作者：

Huang, Qingzhong ^{[1
]}

Liu, Qiang ^{[1
]}

Xia, Jinsong ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China

来源：

OPTICS LETTERS | 2017年 / 42卷 / 24期

基金：

中国国家自然科学基金;

关键词：

CRYSTAL NANOBEAM CAVITIES; NETWORKS-ON-CHIP; ULTRA-COMPACT; SWITCH; MODE; DESIGN; GUIDE; BAND;

D O I：

10.1364/OL.42.005158

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have proposed and studied a novel channel add-drop filter (ADF) based on a single Fabry-Perot resonator. The resonator consists of two mode-conversion Bragg grating reflectors separated by a wide waveguide that laterally coupled to two narrow waveguides. It behaves like a traveling-wave resonator where fields are coupled to the buses in one direction. Compact and narrowband ADFs are achieved with dropping efficiencies higher than 95%, as shown by the three-dimensional finite-difference time-domain simulations. In addition, the proposed device is applied to realize an eight-channel add-drop multiplexer in the C-band by cascading the ADFs with adjusted channel wavelengths. (C) 2017 Optical Society of America

引用

页码：5158 / 5161

页数：4