A Clock Enhanced Loop for Simultaneous Error-Free Demultiplexing and Clock Recovery of 160 Gb/s OTDM Signal Single-Channel Transmission over 100 km

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2010,（11）
• 页码范围: 121-124
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/27/11/114213

摘要

A simple clock enhanced loop of cascaded electro-absorption modulators(EAMs)and 10GHz clock recovery modules is presented.The intensity of harmonic of clock-frequency component is analyzed theoretically and verified experimentally in a 160Gb/s OTDM 100km transmission system.The 10GHz clock component is enhanced obviously before launching into the clock recovery module and the recovered clock signal exhibits low rms jitter of < 400 fs.Moreover,completely error-free(10-12)transmission is observed for more than two hours without using forward error correction technology.The power penalty is about 3.6dB.The proposed loop has merits of enhancing base clock component,simultaneously de-multiplexing and clock recovery,which make the performance of this loop more stable and high suppression of non-target channels.