Chinese Optics Letters, 2012, 10 (3): 030601, Published Online: Oct. 20, 2011
Quantitative monitoring of relative clock wander between signal and sampling sources in asynchronous optical under-sampling system
Abstract
Optical performance monitoring using asynchronous optical or electrical sampling has gained considerable attention. Relative clock wander between data signal and sampling source is a typical occurrence in such systems. A method for the quantitative monitoring of the relative clock wander in asynchronous optical under-sampling system is presented. With a series of simulations, the clock wanders recovered using this method are in good agreement with the preset clock wanders of different amounts and frequencies for both RZ and NRZ signals. Hence, the reliability and robustness of the method are proven.
Huixing Zhang, Wei Zhao. Quantitative monitoring of relative clock wander between signal and sampling sources in asynchronous optical under-sampling system[J]. Chinese Optics Letters, 2012, 10(3): 030601.