Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – With measuring – controlling – sensing – programming – timing,...
Patent
1995-03-21
1997-07-08
Hoffmann, John
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
With measuring, controlling, sensing, programming, timing,...
65385, 65402, 65102, 65117, 65407, C03B 2320, C03B 2300, C03B 3700
Patent
active
056456220
ABSTRACT:
Silica tubes and sleeves are used to protect fusion splices between the ends of the fiber coil and polarizing fibers. Use of silica for most of the subassembly components matches the coefficients of thermal expansion of the subassembly to that of the fiber coil, and also allows the coil to be annealed at extremely high temperatures. Annealing yields fiber coils of lowered birefringence, particularly when used with spun fibers. Ferrules are used to adjust the angular orientation of the fibers with respect to their planes of polarization.
REFERENCES:
patent: 4298245 (1981-11-01), Aulich et al.
patent: 4695306 (1987-09-01), Hakoun
Article entitled "Faraday Effect Sensors: The State of the Art" by G.W. Day and A.H. Rose, National Bureau of Standards, Boulder, CO 80303, SPIE vol. 985, Fiber Optic and Laser Sensors VI (1988) pp. 138-150.
Cronk Bryon J.
Hutchinson Ted F.
Lutz Dale R.
MacDougall Trevor W.
Onstott James R.
Chernivec Gerald F.
Griswold Gary L.
Hoffmann John
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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