Title page for ETD etd-06102012-040419

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
  • Reflectance spectroscopy.
Date of Defense 1988-01-15
Availability restricted
High 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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