Chromatic Dispersion-Monitoring Technique Based on Phase-Sensitive Detection

摘要

A novel chromatic dispersion-monitoring technique is proposed and demonstrated. A path imbalanced interferometer is used to monitor the intensity to phase conversion of a radiofrequency spectral component of a modulated signal. The measurement range of the technique is independent of the data rate and can be tuned by adjusting the path length difference of the interferometer. An unambiguous measurement range of >2300 psm is demonstrated for a 10-GB/s nonreturn-to-zero signal.