Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – With measuring – controlling – sensing – programming – timing,...
Patent
1995-03-28
1997-10-28
Hoffmann, John
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
With measuring, controlling, sensing, programming, timing,...
65381, 65398, 65435, 65399, C03B 37027
Patent
active
056813651
ABSTRACT:
A radiation resistant optical waveguide fiber doped with fluorine or drawn with low tension in the fiber. The fluorine doping is substantially constant across the core and a portion of the clad adjacent the core. The concentration of the fluorine is in the range of about 0.3 to 3.0 weight percent. The draw tension is less than or equal to about 5 grams (40 dynes/cm.sup.2) to achieve optimum radiation resistance. A synergy is found when fluorine and low draw tension are applied to a fiber. Improvement in radiation resistance is largely independent of fiber type and geometry. Further improvement in radiation resistance is found when germanium is doped in a portion of the clad adjacent the core.
REFERENCES:
patent: 4579571 (1986-04-01), Hicks
patent: 4692615 (1987-09-01), Mensah
patent: 4969941 (1990-11-01), Kyoto
patent: 4988162 (1991-01-01), Hayami
patent: 5146534 (1992-09-01), Lines
patent: 5163987 (1992-11-01), Ishiguro et al.
patent: 5210816 (1993-05-01), Lino et al.
patent: 5217516 (1993-06-01), Ishiguro
patent: 5221309 (1993-06-01), Kyoto
patent: 5303318 (1994-04-01), Tateda
A Review of Single-Mode Fibers with Modified Dispersion Characteristics, Ainslle et al., Journal of Lightwave Technology, vol., LT-4, No. 8, Aug. 1986.
Formation of Drawing Induced E Centers in Silica Optical Fibers by Y. Hibino et al. Japanese Journal of Applied Physics, 1985.
Drawing Condition Dependence of Radiation-Induced Loss in Optical Fibers, by H. Hanafusa et al. Electronics Letters V.22, No. 2, 1986.
Influence of Preform and Draw Conditions on UV Transmission and Transient Radiation Sensitivity of an Optical Fiber by Lyons et al. Proceedings SPIE vol. 1174, Fiber Optics Reliability: Benign and Advese Environments III. 1989 Symposium.
Gilliland John W.
Morrow Alan J.
Sandhage Kenneth
Chervenak William J.
Corning Incorporated
Hoffmann John
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