C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
C03B 37/018 (2006.01) C03B 32/00 (2006.01) C03B 37/012 (2006.01) C03B 37/014 (2006.01) C03C 13/04 (2006.01) H01S 3/067 (2006.01)
Patent
CA 2210564
A sintered dense glass, alumina-doped optical fiber preform is stretched and is then heated to a temperature of 1490-1495°C to remove bubbles without causing crystallization. Thereafter, the stretched glass body is either drawn directly into an optical fiber or overclad and then drawn into a fiber.
L'invention est constituée par une préforme de fibre optique faite d'un verre dense fritté dopé d'alumine qui est étiré, puis chauffé à une température de 1490-1495 C pour éliminer les bulles sans entraîner de cristallisation. Le verre ainsi traité est ensuite étiré directement pour former une fibre optique, ou gainé puis étiré pour former une fibre.
Antos Alfred Joseph
Chu Polly W.
Corning Incorporated
Gowling Lafleur Henderson Llp
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