Radiation Tolerant Optical Fibers: From Sample Testing to Large Series Production

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.

[1]  Devine,et al.  Correlated defect creation and dose-dependent radiation sensitivity in amorphous SiO2. , 1989, Physical review. B, Condensed matter.

[2]  C Boccard,et al.  The LHC Orbit and Trajectory System , 2003 .

[3]  E. J. Friebele,et al.  Model for the dose, dose-rate and temperature dependence of radiation-induced loss in optical fibers , 1994 .

[4]  W. Griffioen.  The installation of conventional fiber-optic cables in conduits using the viscous flow of air , 1989 .

[5]  E. J. Friebele,et al.  Overview Of Radiation Effects In Fiber Optics , 1985, Other Conferences.

[6]  Kazuhiko Aikawa,et al.  Radiation-Resistant Single-Mode Optical Fibers , 2008 .

[7]  Yoshinori Hibino,et al.  Formation mechanism of drawing‐induced E’ centers in silica optical fibers , 1985 .

[8]  David L. Griscom,et al.  Optical Properties and Structure of Defects in Silica Glass , 1991 .

[9]  H. Hosono,et al.  Co60γ-ray-induced intrinsic defect processes in fluorine-doped synthetic SiO2 glasses of different fluorine concentrations , 2009 .

[10]  S T Pantelides,et al.  Reactions and diffusion of water and oxygen molecules in amorphous SiO2. , 2002, Physical review letters.

[11]  David L. Griscom,et al.  Defect structure of glasses: Some outstanding questions in regard to vitreous silica , 1985 .

[12]  Y. Hibino,et al.  Raman study on silica optical fibers subjected to high tensile stress , 1985 .

[13]  Kenneth T. Gillen,et al.  A kinetic model for predicting oxidative degradation rates in combined radiation‐thermal environments , 1985 .

[14]  Friebele,et al.  Fundamental radiation-induced defect centers in synthetic fused silicas: Atomic chlorine, delocalized E' centers, and a triplet state. , 1986, Physical review. B, Condensed matter.

[15]  U. Weinand,et al.  Quality Assurance for Irradiation Tests of Optical Fibers: Uncertainty and Reproducibility , 2009, IEEE Transactions on Nuclear Science.

[16]  U C Paek,et al.  Correlation of single-mode fiber radiation response and fabrication parameters. , 1991, Applied optics.

[17]  J. Kuhnhenn,et al.  Optical Absorption in Commercial Single Mode Optical Fibers in a High Energy Physics Radiation Field , 2007, IEEE Transactions on Nuclear Science.

[18]  E. J. Friebele,et al.  Color Centers in Glass Optical Fiber Waveguides , 1985 .