Photonic Crystal Three-Port Channel Drop Filter Based on One-Way Waveguide

Author

Ren, Hongliang ; Qin, Yali ; Wen, Hao ; Cao, Quanjun ; Guo, Shuqin ; Chang, Liping ; Hu, Weisheng ; Jiang, Chun ; Jin, Yaohui

Author_Institution

Coll. of Inf. Eng., Zhejiang Univ. of Technol., Hangzhou, China

Volume

24

Issue

5

fYear

2012

fDate

3/1/2012 12:00:00 AM

Firstpage

332

Lastpage

334

Abstract

We design a highly efficient three-port channel drop filter (CDF) with only one channel drop micro-cavity based on photonic crystal (PC) one-way waveguide. According to the coupled mode theory in time, the conditions to achieve 100% drop efficiency are derived thoroughly. The numerical results are all calculated by using the finite element method, and accord well with the theoretical analysis. Compared with previous three-port CDF based on general dielectric PC, the CDF based on PC one-way waveguide first shows almost complete channel drop tunneling at resonance via only one channel drop micro-cavity without the need for any reflection feedback.

Keywords

coupled mode analysis; finite element analysis; micro-optics; microcavities; optical design techniques; optical waveguide filters; photonic crystals; complete channel drop tunneling; coupled mode theory; finite element method; microcavity; one-way waveguide; photonic crystal; reflection feedback; three-port channel drop filter; Dielectrics; Lattices; Optical filters; Optical waveguides; Photonic crystals; Q factor; Reflection; Channel drop filter (CDF); channel drop micro-cavity; magneto-optical (MO) photonic crystal (PC); one-way waveguide;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2011.2176329

Filename

6082378