| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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A Clock Enhanced Loop for Simultaneous Error-Free Demultiplexing and Clock Recovery of 160Gb/s OTDM Signal Single-Channel Transmission over 100km |
| JIA Nan**, LI Tang-Jun, ZHONG Kang-Ping, WANG Mu-Guang, CHEN Ming, LI Jing, CHI Jian-Feng
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Key-Laboratory of All-Optical Networks and Advanced Communication Networks (Ministry of Education), Beijing Jiaotong University, Beijing 100044 Institute of Light Wave Technology, Beijing Jiaotong University, Beijing 100044
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| Cite this article: |
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JIA Nan, LI Tang-Jun, ZHONG Kang-Ping et al 2010 Chin. Phys. Lett. 27 114213 |
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Abstract A simple clock enhanced loop of cascaded electro-absorption modulators (EAMs) and 10 GHz clock recovery modules is presented. The intensity of harmonic of clock-frequency component is analyzed theoretically and verified experimentally in a 160 Gb/s OTDM 100 km transmission system. The 10 GHz 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 3.6 dB. 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.
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42.79.Sz
42.79.Hp
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Received: 28 May 2010
Published: 22 October 2010
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| PACS: |
42.79.Sz
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(Optical communication systems, multiplexers, and demultiplexers?)
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42.79.Hp
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(Optical processors, correlators, and modulators)
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