All-optical orthogonal frequency multiplexing scheme with cyclic postfix based on fiber Bragg gratings

被引：2

作者：

Chen, Hongwei ^{[1
]}

Chen, Minghua

Yin, Feifei

Xin, Ming

Xie, Shizhong

机构：

[1] Tsinghua Univ, State Key Lab Integrated Optoelect, Beijing 100084, Peoples R China

来源：

OPTICAL ENGINEERING | 2009年 / 48卷 / 06期

基金：

高等学校博士学科点专项科研基金;

关键词：

all-optical orthogonal frequency division multiplexing; optical samples; optical cyclic postfix; fiber Bragg grating; OFDM; COMPENSATION; PERFORMANCE; MITIGATION;

D O I：

10.1117/1.3156051

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel all-optical orthogonal frequency division multiplexing (AO-OFDM) scheme is proposed and demonstrated. Ultrashort optical pulses are used as samples for optical discrete Fourier transform (DFT) and the inverse DFT process. Different subcarrier channels can be parallelly processed by fiber Bragg gratings. A 20-Gb/s two subcarrier AO-OFDM experiment is carried out with narrowband filtering and optical cyclic postfixes(CP) inserted. Experimental results show that this scheme has good spectral efficiency. Furthermore, the received signals have better eye diagrams and bit error rate performance with the help of CP. This scheme can be used in high-speed optical transmission systems. (C) 2009 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3156051]

引用

页数：6

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