Design of a Compact Photonic-Crystal-Based Polarization Channel Drop Filter

被引：9
|
作者：
Zhang, Wenfu [1 ,2 ]
Liu, Jihong [1 ,3 ]
Zhao, Wei [1 ]
机构：
[1] Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
[3] Xian Inst Post & Telecommun, Elect & Informat Engn Dept, Xian 710061, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2009年 / 21卷 / 9-12期
基金：
中国国家自然科学基金;
关键词：
Photonic crystal (PhC); polarization and wavelength-division multiplexing (PWDM); polarization channel drop filter (PCDF); WAVE-GUIDE; SPLITTER; LIGHT; BEAM;
D O I：
10.1109/LPT.2009.2017503
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We design a compact photonic-crystal-based polarization channel drop filter (PhC-PCDF) using the triangular lattice air holes PhC, which would be an essential device in future integrated polarization and wavelength-division-multiplexed (PWDM) system. The PhC-PCDF contains two line waveguides and a resonating system between them. In the line waveguide, the transverse-electric (TE) polarization and the transverse-magnetic (TM) are guided by photonic bandgap effect and total internal reflection effect, respectively. By resonating the system, a narrow bandwidth TE polarization is dropped from one waveguide to the other, leaving other components of the PWDM signal without any disturbance. The transmission efficiency for TM polarization and TE polarization are both over 95%. The quality factor of the TE PCDF is about 1800. The whole size of the designed PhC-PCDF can be 20a x 12a.
引用
收藏
页码：739 / 741
页数：3
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