Type of Document Master's Thesis Author Zimmermann, Bernd D. URN etd-06102012-040419 Title High resolution optical time domain reflectometry and its application Degree Master of Science Department Electrical Engineering Advisory Committee
Advisor Name Title Claus, Richard O. Committee Chair Bostian, Charles W. Committee Member Pieper, Ronald J. Committee Member Keywords
- Reflectance spectroscopy.
Date of Defense 1988-01-15 Availability restricted AbstractHigh resolution Optical Time Domain Reflectometry (OTDR)
measurements have recently allowed spatial resolutions of less
than one millimeter. These capabilities indicate that OTDR
techniques may be suitable for non-conventional applications
such as the determination of fiber strain. This thesis
presents an investigation of how high resolution OTDR
techniques can be used in such applications. The concept of
fiber segmentation via partially reflective optical splices
for local strain measurements is discussed both from a
theoretical and practical standpoint. Experimental results
demonstrating the feasibility of such local strain
measurements are also given. Another part of this
investigation considers the practical details of the proposed strain measurement technique, addressing such topics as launching conditions, and environmental factors. Possible applications of the local strain measurement techniques, such as two- and three-dimensional
stress analysis, and strain determination
of fiber optic cables, are also presented. These
applications also include the development of small, easy to
manufacture elastomeric optical splices, which were shown to yield acceptable performance < 0.2 dB losses) for multimode fibers.
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