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
收藏
页码：5158 / 5161
页数：4
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