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  4. Radiation induced loss measurements of optical fibres with Optical Time Domain Reflectometers (OTDR) at high and low dose rates
 
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1992
Conference Paper
Title

Radiation induced loss measurements of optical fibres with Optical Time Domain Reflectometers (OTDR) at high and low dose rates

Abstract
The proven way of determining induced loss of optical fibres are transmission loss measurements. For longterm irradiations of radiation hard fibres at low dose rates, however, the induced loss is mostly small compared to the unavoidalble drifts of the measuring system. Measurements with OTDRs where each time a new absolute loss measurement is performed could overcome this problem, provided this method yields the same results as transmission loss measurements. We made measurements on single mode and graded index fibres with OTDRs of three different manufacturers and found that, under comparable conditions, OTDR measurements yield exactly the same results.
Author(s)
Henschel, Henning
Köhn, Otmar
Schmidt, Hans Ulrich
Mainwork
RADECS 91. Vol.15. Radiation - effects on components and systems  
Conference
European Conference on Radiations and their Effects on Devices and Systems 1991  
Open Access
File(s)
Download (252.75 KB)
Rights
Use according to copyright law
DOI
10.24406/publica-r-320165
10.1109/RADECS.1991.213571
Language
English
Fraunhofer-Institut für Naturwissenschaftlich-Technische Trendanalysen INT  
Keyword(s)
  • backscatter measurement

  • optical fibres

  • Optical Time Domain Reflectometer

  • OTDR

  • photobleaching

  • radiation induced loss

  • transmission loss measurement

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