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Mitigation of sampling clock drift in asynchronously under-sampled optical bit pattern monitoring

: Zhang, H.; Schmidt-Langhorst, C.; Zhao, W.; Schubert, C.


Institute of Electrical and Electronics Engineers -IEEE-; IEEE Photonics Society:
Asia Communications and Photonics Conference and Exhibition, ACP 2009. Proceedings : 2-6 November 2009, Shanghai, China
Piscataway, NJ: IEEE, 2009
ISBN: 978-1-55752-877-3
2 S.
Asia Communications and Photonics Conference and Exhibition (ACP) <2009, Shanghai>
Fraunhofer HHI ()
optical fibre communication; optical signal detection; signal sampling

We propose a bit pattern monitoring technique which effectively mitigates the random walk clock drift between data signal and sampling source in asynchronously undersampling systems. The method is verified by measurements of 40 Gb/s NRZ and 160 Gb/s RZ data signals. Quantitative analysis of the displayed timing jitter is performed.