Abstract
Optical time domain reflectometery (OTDR) is one of the most used
measurement techniques in the characterization of optical fiber links. In
this paper, we present a thorough investigation of an OTDR using a Peltier
cooled photon-counting detector at 1.55 um. Due to its superior spatial
resolution and the absence of classical dead-zones, it is well suited for
detailed, high resolution analysis of problem zones. We give a detailed
analysis of its performance,and also demonstrate that a
polarization-sensitive photon-counting OTDR can be used to extract local
birefringences too large to be measured with standard P-OTDRs.
© 2004 IEEE
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