Automatic DGD and GVD compensation at 640 Gb/s based on scalar radio-frequency spectrum measurement

Yvan Paquot*, Jochen Schroder, Evarist Palushani, Richard Neo, Leif K. Oxenløwe, Steve Madden, Duk Yong Choi, Barry Luther-Davies, Mark D. Pelusi, Benjamin J. Eggleton

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We demonstrate what we believe to be the first real-time impairment-cancellation system for groupvelocity dispersion (GVD) and differential group delay (DGD) for a 640 Gb/s single-channel signal. Simultaneous compensation of two independent parameters is demonstrated by feedback control of separate GVD and DGD compensators using an impairment monitor based on an integrated all-optical radio-frequency (RF) spectrum analyzer.We show that low-bandwidth measurement of only a single tone in the RF spectrum is sufficient for automatic compensation for multiple degrees of freedom using a multivariate optimization scheme.

    Original languageEnglish
    Pages (from-to)1919-1927
    Number of pages9
    JournalApplied Optics
    Volume52
    Issue number9
    DOIs
    Publication statusPublished - 20 Mar 2013

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