FBG-Based Matched Filters for Optical Processing of RF Signals

被引：4

作者：

Dastmalchi, Mansour ^{[1
]}

Doucet, Serge ^{[1
]}

Rusch, Leslie A. ^{[1
]}

LaRochelle, Sophie ^{[1
]}

机构：

[1] Univ Laval, Dept Elect & Comp Engn, COPL, Quebec City, PQ G1V 0A6, Canada

来源：

IEEE PHOTONICS JOURNAL | 2012年 / 4卷 / 03期

关键词：

Complex matched filters; fiber Bragg gratings (FBGs); microwave photonics; RF signal detection; RF pulse compression; optical signal processing; ultrawideband (UWB); WAVE-FORMS;

D O I：

10.1109/JPHOT.2012.2198805

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 demonstrate the detection of RF pulses using complex matched filters implemented in photonics. The optical receiver consists of an intensity Mach-Zehnder modulator (MZM) for electrical-to-optical conversion as well as precisely tailored fiber Bragg grating (FBG) filters performing as matched filters. We examine the performance of the receiver under two bias conditions of the MZM, namely, quadrature and minimum transmission. We design the corresponding matched filters for both cases by optimizing the impulse response of linearly chirped FBGs. We fabricate the FBGs by achieving the required apodization profiles through a multiple-scan writing procedure. We discuss the relative performance of the two solutions.

引用

页码：832 / 843

页数：12

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