Automatic DGD and GVD Compensation at 640 Gb/s Based on Scalar Radio-Frequency Spectrum Measurement. Paquot, Y., Schröder, J., Palushani, E., Neo, R., Oxenløwe, L. K., Madden, S., Choi, D., Luther-Davies, B., Pelusi, M. D., & Eggleton, B. J. Applied Optics, 52(9):1919, March, 2013. doi abstract bibtex We demonstrate what we believe to be the first real-time impairment-cancellation system for group-velocity 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.
@article{paquot2013a,
title = {Automatic {{DGD}} and {{GVD}} Compensation at 640 {{Gb}}/s Based on Scalar Radio-Frequency Spectrum Measurement},
shorttitle = {Appl. {{Opt}}.},
author = {Paquot, Yvan and Schr{\"o}der, Jochen and Palushani, Evarist and Neo, Richard and Oxenl{\o}we, Leif K. and Madden, Steve and Choi, Duk-Yong and {Luther-Davies}, Barry and Pelusi, Mark D. and Eggleton, Benjamin J.},
year = {2013},
month = mar,
volume = {52},
pages = {1919},
issn = {0003-6935},
doi = {10.1364/AO.52.001919},
abstract = {We demonstrate what we believe to be the first real-time impairment-cancellation system for group-velocity 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.},
journal = {Applied Optics},
keywords = {chalcogenide,MyAll,MyJournals},
number = {9}
}
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