Title :
Radiation Tolerant Optical Fibers: From Sample Testing to Large Series Production
Author :
Wijnands, Thijs ; Aikawa, Kazuhiko ; Kuhnhenn, Jochen ; Ricci, Daniel ; Weinand, Udo
Author_Institution :
Eur. Lab. for Particle Phys., CERN, Geneva, Switzerland
Abstract :
The process of selecting, manufacturing, and installing a large quantity (2500 km) of commercially available radiation tolerant specialty fibers is described. Radiation tests of various types of fibers from different manufacturers provided sufficient understanding of the radiation effects to select the best performing fiber type. Systematic verification of a sample of each preform assured a constant quality of the series production and allowed assessing the impact of small variations in the manufacturing process on the radiation hardness and the optical transmission characteristics. The fiber cable installation technique based on microjetting and plastic cable ducts has been validated for areas with high levels of radiation.
Keywords :
optical cables; optical fibre fabrication; optical fibre testing; radiation hardening; fiber cable installation; large series production; manufacturing; microjetting; optical transmission; plastic cable ducts; radiation effects; radiation hardness; radiation tolerant optical fibers; sample testing; selection; Attenuation; Doping; Large Hadron Collider; Optical fiber cables; Optical fibers; Production; Radiation effects; Fluorine doping; The European Organization for Nuclear Research (CERN); large hadron collider (LHC); microduct cabling; optical fiber; radiation induced attenuation (RIA);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2011.2168512
