A Study of Tunable Optical Filters Based on Micro-ring Structures

被引：1
|
作者：
Huang, J-M. [1 ]
Yao, Y. D. [1 ]
Deng, Z. L. [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China
来源：
2009 IEEE INTERNATIONAL CONFERENCE ON MECHATRONICS AND AUTOMATION, VOLS 1-7, CONFERENCE PROCEEDINGS | 2009年
关键词：
Micro-ring; Tunable optical filter; Thermal tuning; Plasma dispersion; Free charge carrier; REFRACTIVE-INDEX DATA;
D O I：
10.1109/ICMA.2009.5246120
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A tunable optical filter based on micro-ring structure is studied in the paper. The normalized energy expression is derived at the output port of the filter. Some factors, such as losses and coupling coefficient, are given to valuate the performance of the filter. The change of waveguide's effective refractive index is calculated to implement the tuning characteristics of the filter. The influence of refractive index's change on the free spectrum range (FSR) and the full width at half maximum (FWHM) of the filter is small, so the tuning method of changing refraction index is feasible. Structures using electrode thermal pad and p-i-n respectively are brought forwards to realize the tuning characteristics of the filter.
引用
收藏
页码：5064 / 5068
页数：5
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