Journal ArticleDOI
Optical fiber fault location method.
Yoshito Ueno,Motoh Shimizu +1 more
TLDR
An optical pulse reflection method based on the optical radar principle is discussed for optical fiber cable fault location and the optical reflection coefficient at flat surfaces of optical fibers was measured and found to be in good agreement with calculated value.Abstract:
An optical pulse reflection method based on the optical radar principle is discussed for optical fiber cable fault location. The optical reflection coefficient at flat surfaces of optical fibers was measured and found to be in good agreement with calculated value. The average reflection coefficient at fractures in optical fibers, which were generated by simple tensile stress, was about 0.5%. The reflected pulse signal from an optical fiber fault at a distance of 1.4 km in a selfoc fiber having transmission loss of 17 dB/km was detected experimentally.read more
Citations
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Journal ArticleDOI
Optical time domain reflectometer.
TL;DR: In this paper, a new measurement technique which allows displaying the length dependence of the fiber attenuation by analyzing backscattered light has been developed by using an optical time domain reflectometer.
Journal ArticleDOI
Data adaptive signal estimation by singular value decomposition of a data matrix
TL;DR: A new method is presented for estimating the signal component of a noisy record of data by assuming the approximate value of rank of a matrix which is formed from the samples of the signal is assumed to be known or obtainable from singular value decomposition (SVD).
Journal ArticleDOI
Measurements in fiber optics
M.K. Barnoski,S.D. Personick +1 more
TL;DR: Measurements currently employed to determine the characteristics of optical fiber waveguides are reviewed and a brief review of the dominant causes of attenuation and modal delay in fibers is also included.
Patent
Detonating cord and continuity verification system
TL;DR: A fuse or ignition conductor for conducting ignition from an igniter to a remotely located primer, as used in the detonation of explosives, is described in this paper, where a light transmitting fiber optic cord bound to the ignition conducting material of the fuse is also broken.
Journal ArticleDOI
A readout scheme providing high spatial resolution for distributed fluorescent sensors on optical fibers.
TL;DR: This work presents a new method for the readout of closely packed fluorescent chemosensors located in the cladding of an optical fiber using a second fiber as an optical delay line, so that the minimum spacing between adjacent sensor regions can be well below the fluorescence lifetime limit.
References
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Journal ArticleDOI
Optical power handling capacity of low loss optical fibers as determined by stimulated Raman and brillouin scattering.
TL;DR: These effects of stimulated Raman and Brillouin scattering must be considered in the design of optical communication systems using low loss fibers especially when low loss optical fibers are used.
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Fiber waveguides: a novel technique for investigating attenuation characteristics
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