Tunable microwave photonic notch filter with two Hi-Bi couplers

被引：0

作者：

Ning, G. ^{[1
]}

Aditya, S. ^{[1
]}

Shum, P. ^{[1
]}

机构：

[1] Nanyang Technol Univ, Network Technol Res Ctr, Singapore 637553, Singapore

来源：

OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2007年 / 1卷 / 07期

关键词：

microwave photonics; radio-over-fiber; differential group delay;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate a tunable microwave-photonic notch filter based on two 3dB Hi-Bi couplers, a half-wave plate, and a variable time delay line. The configuration is free from the problems of optically coherent interference and chromatic dispersion. Expressions for the filter transfer function, as well as its application in a 20 km radio-over-fiber (RoF) link, are presented. Measured results match the calculated results and show a notch rejection greater than 35 dB. The scheme can operate over a wide range of optical carrier frequencies.

引用

页码：356 / 359

页数：4

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