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Title: Transparent monitoring of rise-time using asynchronous amplitude histograms in optical transmission systems
Authors: Chen, Hui
Poon, Andrew Wing On
Cao, Xiren
Keywords: Amplitude histogram
Asynchronous sampling
Average Q factor
Chromatic dispersion
Performance monitoring
Issue Date: Jul-2004
Citation: Journal of lightwave technology, v. 22, no. 7, July 2004, p. 1661-1667
Abstract: In this paper we report our analysis, simulations, and proof-of-principle experiment on transparent monitoring of relative rise-time using asynchronously sampled amplitude histograms in optical transmission systems. Our method is based on the count in a selected amplitude window between the mark and space levels. We evaluate our method under various amplitude windows and Q-factor values and compare with synchronously sampled eye-diagram based measurements. Our results demonstrate that the 40%-60% amplitude window is generally suitable for system rise-time monitoring purpose without clock information.
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