H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/17 (2006.01) C03B 37/012 (2006.01) C03B 37/027 (2006.01) C03B 37/075 (2006.01) C03C 13/04 (2006.01)
Patent
CA 2221060
An active single mode optical fiber has the core made of a rare earth doped non-oxide glass and the cladding made of an oxide glass. The glass of the core has a melting temperature lower than that of the glass of the cladding and lying within the range of the softening temperatures of the latter. In a preferred embodiment the pore is made of a chalcogenide glass and the cladding is made of a lead silicate glass. To produce the fibre, a preform , obtained by introducing an element made of the non-oxide glass into the hole of a capillary tube made of the oxide glass, is brought to a temperature lying within the range of softening temperatures of the oxide glass and not lower than the melting temperature of the non-oxide glass, and is drawn. The capillary tube (1), during the drawing process, serves as a container for the molten glass of the core.
Agilent Technologies Inc.
Cselt - Centro Studi E. Laboratori Telecommunicazioni S.p.a.
Ridout & Maybee Llp
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