PMD tolerance testing of optical interfaces

Harald Rosenfeldt

doi:10.1117/12.752199

10 September 2007 PMD tolerance testing of optical interfaces

Harald Rosenfeldt

Author Affiliations +

Proceedings Volume 6774, Optical Transmission Systems and Equipment for Networking VI; 67740F (2007) https://doi.org/10.1117/12.752199
Event: Optics East, 2007, Boston, MA, United States

Abstract

Improving the tolerance to polarization mode dispersion (PMD) is considered to be one of the major prerequisites for the success of modern high bit rate optical communication systems. Various approaches such as optical compensation, electrical mitigation, multi-level modulation formats promise to increase the PMD tolerance of optical systems, whereas the question of how to experimentally characterize these solutions needs to be answered before commercial deployment. This is not an easy task since these systems need to be characterized with respect to first and higher order PMD but also with respect to their dynamic behavior. We show that deterministic polarization controllers combined with in-situ measurement of PMD can help to explore the PMD tolerance of an optical communication system and to generate reliable and repeatable results by avoiding statistical elements such as polarization scramblers. These elements can be combined to form a PMD testbed which allows to stress a system by applying a deterministic amount of PMD including a well-defined rate of change. Such a PMD testbed can be used during development of adaptive mitigators as well as for compliance testing. Finding an agreement on standard test procedures for such a testbed will make the evaluation of PMD tolerant receivers easier and more comparable.

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Harald Rosenfeldt "PMD tolerance testing of optical interfaces", Proc. SPIE 6774, Optical Transmission Systems and Equipment for Networking VI, 67740F (10 September 2007); https://doi.org/10.1117/12.752199

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KEYWORDS

Polarization

Tolerancing

Receivers

Distortion

Polarimetry

Spectroscopy

Picosecond phenomena

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