Integration of Photonic Crystal Splitter and Slow Light Waveguide for a Microwave Photonic Filter

被引：2

作者：

Shen, Guansheng ^{[1
]}

Tian, Huiping ^{[1
]}

Yang, Daquan ^{[1
]}

Ji, Yuefeng ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Sch Informat & Telecommun Engn, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China

来源：

IEEE PHOTONICS JOURNAL | 2013年 / 5卷 / 04期

关键词：

Photonic crystals; optical interconnects; waveguide devices; DOWNSTREAM; SIGNAL; TAPER;

D O I：

10.1109/JPHOT.2013.2272777

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 theoretically investigate an ultracompact integration of a photonic crystal (PC) splitter and a slow-light waveguide for a microwave photonic filter. We realize the filter characteristics with a free spectrum range of 130 GHz and a notch depth of 10 dB, and the whole length is only 24.8 mu m with the use of a slow-light PC waveguide as a delay line. The splitter is fabricated with the delay line using a U-shaped waveguide. In addition, the coupling efficiency between slow-light waveguide and U-shaped waveguide has been increased from 10% to 62% with an optimized linear taper structure. The proposed microwave photonic filter can be applied in the 60-GHz Radio-over-Fiber (RoF) system.

引用

页数：11

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