Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2005-07-12
2005-07-12
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
C385S127000, C385S128000
Reexamination Certificate
active
06917740
ABSTRACT:
An optical fiber is disclosed in which the core region of the optical fiber is doped with Cl and F in order to reduce the viscosity mismatch between the core region and the adjacent cladding region. In one embodiment of the invention, the optical fiber is a single-mode step index optical fiber having a core region doped with Cl and F in an amount effective to produce a difference in temperature between the glass transition temperature of the core region and the glass transition temperature of the adjacent cladding region of less than about 200° C.
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Boek Heather D.
Murtagh Michael T.
Sen Sabyasachi
Able Kevin M.
Corning Incorporated
Lin Tina M.
Ullah Akm Enayet
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