Abstract The influence of degenerate four-wave mixing (FWM) on the performance of supercontinuum-based multiwavelength optical source has been investigated in detail experimentally and theoretically. Numerical simulation results show that the degenerate FWM effect has a deteriorative influence on the spectral uniformity and the optical signal-to-noise ratio (OSNR) of supercontinuum-based optical source, and by suppressing degenerate FWM effect the performance enhancement of the supercontinuum can be achieved successfully. These results are also confirmed by our experiments. Experimentally, by suppressing degenerate FWM the crosstalk of adjacent channels to the filtered channel can be reduced by as much as 15 dB, and consequently the measured receiver sensitivity at 10 Gbit/s for the filtered optical source is improved from -1.7 to -17.8 dBm.
Received: 10 October 2006
Revised: 11 January 2007
Accepted manuscript online:
PACS:
42.65.Hw
(Phase conjugation; photorefractive and Kerr effects)
Fund: Project supported by the National Natural Science Foundation of
China (Grant No~60577033), the Specialized Research Fund for the Doctoral
Program of Higher Education (Grant No~20050003010) and the Basic Research
Foundation of Tsinghua National Laboratory for Information Science and
Technology.
Cite this article:
Zhao Xiao-Fan(赵晓凡), Yang Yan-Fu(杨彦甫), Zhou Hong-Bo(周鸿波), Lou Cai-Yun(娄采云), and Gao Yi-Zhi(高以智) Influence of degenerate four-wave mixing on the performance of supercontinuum-based multiwavelength optical source 2007 Chinese Physics 16 1672
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