J4 ›› 2009, Vol. 26 ›› Issue (4): 489-493.

• 光通信 • 上一篇    下一篇

带反射腔的光子晶体分插复用器

杜科   

  1. 成都信息工程学院光电技术系,成都 610225
  • 收稿日期:2008-09-18 修回日期:2008-10-31 出版日期:2009-07-28 发布日期:2009-06-29
  • 通讯作者: 杜科(1986-),男,成都信息工程学院光电技术系05级在校生,研究方向为光子晶体器件的原理和制备。 E-mail:Nm861121@163.com

Photonic crystal channel drop filter with wavelength-selective reflection micro-cavity

DU Ke   

  1. Department of Optoelectronic Technology, Chengdu University of Information Technology, Chengdu 610225,China
  • Received:2008-09-18 Revised:2008-10-31 Published:2009-07-28 Online:2009-06-29

摘要:

提出一种由二维光子晶体构成的四端口滤波器。该滤波器含三个微腔,其中两个是参数完全相同的波长选择性反射腔,用于波长选择性的反射反馈。另外一个是下载腔,用于下载特定的波长光波。利用耦合模式理论(CMT)分析了该滤波器的滤波特性,得出了实现完全下载滤波的条件,即通过改变两波长选择性反射腔到下载腔之间的距离,使之满足晶格周期的奇数倍。并且用FDTD方法对该器件进行了数值分析,显示了该器件上下载的的可行性。

关键词: 光通信, 分插复用器, 耦合模式理论, 光子晶体, 波长选择放反射腔

Abstract:

A new configuration of four-port channel drop filter in two dimensional photonic crystals (2D PCs) is presented in the paper. In this structure, three micro-cavities are used. Two micro-cavities are used to realize wavelength-selective reflection feedback. The other is used for resonant tunneling-based channel drop filter. Using coupled mode theory (CMT), the conditions to achieve 100% drop efficiency are derived. The simulation results by using the two dimensional FDTD method show a good agreement with the CMT result, and show that this configuration is feasible.

Key words: optical communication, channel drop filter, coupled mode theory, photonic crystal, wavelength-selective reflection micro-cavitiy

中图分类号: