Study of FSK/IM orthogonal modulation system with optical Manchester-coded payload

• 来源期刊: 中国光学快报(英文版)
• 学科: 工学
• 关键词: 曼彻斯特编码 有效载荷系统 FSK信号 调制系统 正交 即时通讯 NRZ码 频移键控
• 年，卷（期）: 2010,（5）
• 所属期刊栏目: Fiber Optics and Optical Communications
• 页码范围: 464-467
• 页数: 4页
• 分类号: TN911.22 V443
• 语种: 英文

摘要

We study the performance of an orthogonal modulation system with frequency-shift keying(FSK) label and optical Manchester-coded(MC) payload.Simulation result shows that by introducing an optical MC payload,the available extinction ratio(ER) value of a FSK and intensity modulation(IM) orthogonal modulation system can be improved from 5 to 9 dB for system optimization,exhibiting great advantages over the traditional non-return-to-zero(NRZ) payload.Besides,the bit error rate(BER) characteristics of both lab...