All-Optical Sampling Orthogonal Frequency-Division Multiplexing Scheme for High-Speed Transmission System

被引：46

作者：

Chen, Hongwei ^{[1
]}

Chen, Minghua ^{[1
]}

Xie, Shizhong ^{[1
]}

机构：

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

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2009年 / 27卷 / 21期

基金：

高等学校博士学科点专项科研基金; 美国国家科学基金会;

关键词：

Cyclic postfix (CP); optical sampling; orthogonal frequency multiplexing;

D O I：

10.1109/JLT.2009.2029063

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

A novel high spectral efficiency all-optical sampling orthogonal frequency-division multiplexing (AOS-OFDM) scheme with optical cyclic postfixes (OCPs) inserted is proposed. Ultrashort pulses are used as optical samples and processed by all optical discrete Fourier transformers based on fiber Bragg gratings (FBGs) technique. This scheme includes five subcarrier channels with 20 Gb/s differential quadrature phase-shift keying (DQPSK) modulation of each channel. So, the total bit rate is 100 Gb/s. The spectral efficiency is higher than 1.4. Furthermore, with the help of OCPs, the dispersion tolerance of this 100 Gb/s AOS-OFDM system increases to more than 300 ps/nm, which is much higher than a traditional 100 Gb/s DQPSK system.

引用

页码：4848 / 4854

页数：7

共 16 条

[1]

Transmission simulation of coherent optical OFDM signals in WDM systems [J].