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Research in Optical Sciences

High Resolution Measurement of Polarization Mode Dispersion in Discrete Telecom Devices using Quantum Interferometry

Andrew M. Fraine, Olga V. Minaeva, Roman I. Egorov, David S. Simon, Alexander V. Sergienko

Published Jan 1, 2012• 1 citation
Publisher

Abstract

A quantum interferometric technique for measuring polarization mode dispersion (PMD) of commercial telecommunication wavelength selective switch (WSS) demonstrates advantages of quantum optical technology over conventional measurement. It provides greater precision than that of currently available commercial PMD characterization devices thus saving a great deal of networking hardware resources that must be allocated for PMD compensation in metropolitan networks.

DOI
10.1364/qim.2012.qm3b.3

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A quantum interferometric technique for measuring polarization mode dispersion (PMD) of commercial telecommunication wavelength selective switch (WSS) demonstrates advantages of quantum optical technology over conventional measurement. It provides greater precision than that of currently available commercial PMD characterization devices thus saving a great deal of networking hardware resources that must be allocated for PMD compensation in metropolitan networks.
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The use of quantum correlations between photons to measure polarization mode dispersion (PMD) and chromatic dispersion is investigated. Two types of apparatus are discussed which use coincidence counting of entangled photon pairs to allow sub-femtosecond resolution for measurement of both PMD and chromatic dispersion, as well as separation of even-order and odd-order chromatic effects in the PMD. Group delays can be measured with a resolution of order 0.1 fs, whereas attosecond resolution can be achieved for phase delays.