Instrumentation principles for optical time domain reflectometry
- 1 May 1986
- journal article
- review article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 19 (5) , 334-341
- https://doi.org/10.1088/0022-3735/19/5/002
Abstract
Optical time domain reflectometry (OTDR) is the only fibre measurement technique which allows anomalously lossy sections of fibre and other defects to be located nondestructively from one end of the fibre. The paper reviews the principles and techniques of the method. The material covered ranges from a brief background introduction to the physics of Rayleigh backscattering in optical fibres, through to the wide range of instrumentation techniques that have been designed to measure this signal.Keywords
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