Title :
Optical absorption in commercial single mode optical fibres in a high energy physics radiation field
Author :
Wijnands, T. ; De Jonge, L.K. ; Kuhnhenn, J. ; Hoeffgen, S.K. ; Weinand, U.
Author_Institution :
CERN, Eur. Organ. for Nucl. Res., Geneva, Switzerland
Abstract :
This paper reports on the radiation induced attenuation of light at 1310 nm and 1550 nm in 12 commercially available single mode (SM) optical fibres. The fibres samples are exposed to gamma rays from a 60Co source and to a high energy physics radiation field. The attenuation is studied as a function of total dose, dose rate, light power and temperature. Radiation resistant fibres from one manufacturer show an extraordinary low attenuation for light at 1310 nm that does not exceed 5 dB/km even after a total dose of 1 MGy. Some 3000 km of this type of fibre have been produced by the manufacturer and quality assurance measurements of the production batches are presently ongoing.
Keywords :
light absorption; optical fibres; radiation effects; commercial single mode optical fibres; high energy physics radiation field; light attenuation; optical absorption; quality assurance measurements; wavelength 1310 nm; wavelength 1550 nm; Absorption; Bonding; Gamma rays; Hydrogen; Manufacturing; Optical attenuators; Optical fibers; Paramagnetic materials; Samarium; Silicon compounds; Optical Fibres; Radiation Induced Attenuation; gamma rays; high energy radiation field; industrial production; quality assurance;
Conference_Titel :
Radiation and Its Effects on Components and Systems, 2007. RADECS 2007. 9th European Conference on
Conference_Location :
Deauville
Print_ISBN :
978-1-4244-1704-9
DOI :
10.1109/RADECS.2007.5205518
