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Proceedings Paper

Detection Of Discrete Faults With Very Low Reflectivity Along Optical Fibers
Author(s): Mehdi Shadaram
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Paper Abstract

Optical Frequency Domain Reflectometer (OFDR) has shown certain advantages over the Optical Time Domain Reflectometer (OTDR) for the detection of discrete faults along optical fibers (1-4). An OFDR usually employs a cw optical carrier modulated by a constant amplitude rf signal with a periodic linear frequency sweep (shown in Fig. 1). The detected optical echoes are delayed by propagation in the fiber to produce a delay in the sweep phase of the modulation. In this paper, OFDR has been employed for the detection of discrete faults with very low reflectivity along optical fibers by taking Fourier transform of the complex envelope of the echoes.

Paper Details

Date Published: 1 January 1987
PDF: 2 pages
Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); doi: 10.1117/12.967300
Show Author Affiliations
Mehdi Shadaram, University of Texas at El Paso (United States)

Published in SPIE Proceedings Vol. 0813:
Optics and the Information Age
Henri H. Arsenault, Editor(s)

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