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Microbending effects in singlemode optical fibers: investigation and novel applications
(Virginia Tech, 1994-12-04)
<p>Microbends are axial distortions on the optical fiber that have a spatial wavelength small
enough to effect coupling between guided and radiation or cladding modes. The
magnitude of this wavelength-dependent coupling ...
Sapphire optical fiber sensors
(Virginia Tech, 1991-05-05)
<p>Fiber optic sensors offer many advantages over conventional sensors,
including; small size, low weight, high strength and durability. Standard silica
optical fibers are limited by the material properties of silica. ...
Concentric-core optical fiber sensors
(Virginia Polytechnic Institute and State University, 1986)
This thesis describes the implementation of a mechanical strain sensor which uses concentric core optical fiber waveguide as the sensing element. When this particular type of fiber is strained, a transfer of optical power ...
Soliton Propagation in nonlinear optical fibers: theory and application
(Virginia Tech, 1987-12-17)
<p>A survey of research in nonlinear optical fibers is given. Important background concepts are
introduced and explained. Present and future applications of nonlinear optical fibers arc reviewed. A mathematical model of ...
Temperature corrected strain measurements using optical time domain reflectometry
(Virginia Tech, 1990-05-12)
<p>A method of using optical fiber to measure strain and
correct for the effects of temperature is proposed. A means
of measuring apparent strain is given, pure temperature is
measured using Fresnel-backscatter based Optical ...
Overview of fiber optics technology: industrial and military
(Virginia Tech, 1989-03-05)
Fiber optics technology is being used in many applications, both in
the military world and in the industrial world. A broad overview of
this technology is provided, including a discussion of the fundamentals
of fiber ...
High resolution optical time domain reflectometry and its applications
(Virginia Polytechnic Institute and State University, 1988-01-15)
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 ...
Chromatic dispersion measurement in single-mode optical fibers by acousto-optic modulation and phase detection
(Virginia Polytechnic Institute and State University, 1986)
A system to measure chromatic dispersion in single-mode optical fibers with near point wavelength resolution is described. Differential propagation constant data for the test fiber is collected by using an acousto-optic ...
Improvements in fiber optic coupler fabrication techniques
(Virginia Tech, 1994)
A novel coupler measurement station and technique for manufacturing fused biconical tapered multi-port multimode couplers with improved uniformity among ports is presented. Improvement in the uniformity of the couplers is ...
Improved draw process in optical fiber fabrication
(Virginia Tech, 1994)
The performance of an optical fiber depends to a great extent on the conditions of the process being used to draw the fiber from a glass preform. To get fibers with higher strength and lower transmission loss, the parameters ...