All-Optical Highly Sensitive Chromatic Dispersion Monitoring Method Utilizing Phase-Matched Four-Wave Mixing

作者：Cui Sheng^*; Sun Simin; Li Li; Ke Changjian; Wan Zhujun; Liu Deming

来源：IEEE Photonics Technology Letters, 2011, 23(22): 1724-1726.

DOI：10.1109/LPT.2011.2169047

• Chromatic dispersion (CD)
• four-wave mixing (FWM)
• nonlinear optics
• optical performance monitoring

This letter represents a highly sensitive all-optical chromatic dispersion (CD) monitoring method utilizing phase-matched four-wave mixing (FWM) in highly nonlinear optical fibers (HNLFs). The monitoring ability arises from the exponential FWM gain which provides an exponential power transfer PTF) mapping the CD experienced by the signals onto the average power of the output idler wave. Our method is simple and much more sensitive compared to the other PTF-based monitoring methods proposed before. The sensitivity enhancement is important for highly accurate dispersion compensation and makes the method effective for signals with high duty cycles. Furthermore, by tailoring the phase-matched wavelength range our method can be used to monitor CD in a wavelength-division-multiplexing (WDM) network.

• 出版日期2011-11-15
• 单位华中科技大学