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Optical Engineering

Effect of second-order polarization mode dispersion on the performance of polarization mode dispersion emulators
Author(s): Deepak Gupta; Arun Kumar; Krishna Thyagarajan
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Paper Abstract

We analyze the performance of multisection fiber polarization mode dispersion (PMD) emulators based on random fiber sectioning and ordered sectioning, with the inclusion of second-order PMD in individual sections. Numerical simulations show that this inclusion leads to (1) an asymmetry in the autocorrelation function (ACF) that increases with the magnitude of second-order PMD and whose form depends on the sign of the second-order term, and (2) a shift in the probability distribution functions of the differential group delay (DGD), and hence the mean DGD, with frequency that are undesirable. This behavior is found to be similar for both types of sectioning and has negligible effect on their corresponding background autocorrelation. This analysis leads to the requirement of suitable design parameters of fibers for which the second-order PMD in individual sections is minimized so that the desired ACF of the fabricated PMD emulator is symmetric and the mean DGD is the same at all frequencies.

Paper Details

Date Published: 1 August 2007
PDF: 6 pages
Opt. Eng. 46(8) 085006 doi: 10.1117/1.2772246
Published in: Optical Engineering Volume 46, Issue 8
Show Author Affiliations
Deepak Gupta, Indian Institute of Technology Delhi (India)
Arun Kumar, Indian Institute of Technology (India)
Krishna Thyagarajan, Indian Institute of Technology Delhi (India)


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