18 September 2014 High-quality frequency-locked optical frequency comb source for terabits optical communication system
Jiachuan Lin, Lixia Xi, Jianping Li, Jianrui Li, Xianfeng Tang, Lu Sun, Xiaoguang Zhang
Author Affiliations +
Funded by: National Natural Science Foundation of China, National Natural Science Foundation of China (NSFC), Natural Science Foundation of China, National High Technology Research and Development of China, National High Technology Research and Development of China (863 Program)
Abstract
A comprehensive investigation is done on a high-quality frequency comb or multicarrier generation using a single-sideband modulation based recirculating frequency shifter (SSB-RFS), which has shown a good capability to provide a large number of frequency-locked carriers for terabits transmission. The dominant factors, such as I/Q modulator, direct current-bias, radio-frequency signal, and band pass filter, are analyzed theoretically and experimentally in terms of the metrics such as flatness, signal-to-noise ratio, and stability. The achieved 69 flat tones by noise suppressed SSB-RFS are presented. An example of SSB-RFS based 2.56  Tb/s PDM-RZ-16QAM 792 km transmission is illustrated, which is enabled by the 20 high-quality carrier tones generated with the optimally operated SSB-RFS source.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2014/$25.00 © 2014 SPIE
Jiachuan Lin, Lixia Xi, Jianping Li, Jianrui Li, Xianfeng Tang, Lu Sun, and Xiaoguang Zhang "High-quality frequency-locked optical frequency comb source for terabits optical communication system," Optical Engineering 53(12), 122608 (18 September 2014). https://doi.org/10.1117/1.OE.53.12.122608
Published: 18 September 2014
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CITATIONS
Cited by 12 scholarly publications and 1 patent.
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KEYWORDS
Modulators

Frequency combs

Telecommunications

Optical communications

Polarization

Optical amplifiers

Linear filtering

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