基于多波段多指标OFDM的相干光学系统设计与性能研究

Q3 Engineering

Journal of Optical Communications Pub Date : 2023-11-03 DOI:10.1515/joc-2023-0237

Fatimah Imad Dawood, Wael Abdul Hassan Hadi

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引用次数: 0

摘要

摘要本文对多波段光正交频分复用(MB-OOFDM)系统进行了全面的研究。相干检测CD技术利用了不同的OFDM索引(128,256,512和1024)。采用高阶调制16正交调幅(16-QAM)获得高频谱效率。传输研究表明，128个2波段子载波的光信噪比(OSNR)为23 dB，误码率(BER)为1 × 10−4，而1024个8波段子载波的光信噪比(OSNR)为22 dB，误码率(BER)为3 × 10−3。尽管较高的子载波类型具有最低的误码率，但当与前向纠错(FEC)存在的波分复用(WDM)结合使用时，它提供了更好的解决方案。利用Optisystem软件，设计并仿真了40gbps、800km无补偿光纤的系统性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Design and performance investigation of a coherent optical system based multi-band OFDM with various indexes

Abstract In this work, a comprehensive study of a multi-band optical orthogonal frequency division multiplexing (MB-OOFDM) system is investigated. Different OFDM indexes (128,256,512, and 1024) are utilized with the coherent detection CD technique. High-order modulation 16-quadrature amplitude modulation (16-QAM) is used to obtain high spectral efficiency. Transmission studies indicated that 128 subcarriers with 2-bands exhibit a higher optical signal-to-noise ratio (OSNR) of 23 dB with lower bit error rate (BER) of 1 × 10 −4 , while 1024 subcarriers with 8-bands shows a lower OSNR of 22 dB with a higher BER of 3 × 10 −3 . Even though the higher subcarrier type has the lowest BER, it provides a superior solution when combined with wavelength-division multiplexing (WDM) in the presence of forward error correction (FEC). The performance of the system with 40 Gbps along 800 km of uncompensated fiber has designed and simulated using Optisystem software.

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来源期刊

Journal of Optical Communications Engineering-Electrical and Electronic Engineering

CiteScore

2.90

自引率

0.00%

发文量

期刊介绍： This is the journal for all scientists working in optical communications. Journal of Optical Communications was the first international publication covering all fields of optical communications with guided waves. It is the aim of the journal to serve all scientists engaged in optical communications as a comprehensive journal tailored to their needs and as a forum for their publications. The journal focuses on the main fields in optical communications