Title :
Optical Absorption in Commercial Single Mode Optical Fibers in a High Energy Physics Radiation Field
Author :
Wijnands, Thijs ; De Jonge, Luit Koert ; Kuhnhenn, Jochen ; Hoeffgen, Stefan Klaus ; Weinand, Udo
Author_Institution :
CERN, Eur. Organ. for Nucl. Res., Geneva
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 fibers. The fiber 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 hard fibers 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. 2500 km of this type of fiber have been produced by the manufacturer and quality assurance measurements of the production batches are presently ongoing.
Keywords :
gamma-ray effects; light absorption; optical fibre testing; radiation hardening; 60Co source; commercial single mode optical fiber; gamma ray irradiation; high energy physics radiation field; optical absorption; quality assurance; radiation absorbed dose 1 MGy; radiation hard fiber; radiation induced light attenuation; size 2500 km; wavelength 1310 nm; wavelength 1550 nm; Attenuation measurement; Electromagnetic wave absorption; Gamma rays; Manufacturing; Optical attenuators; Optical fibers; Production; Quality assurance; Samarium; Temperature; Gamma rays; high energy radiation field; industrial production; optical fibers; quality assurance; radiation induced attenuation;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2008.2001859
