Optical fiber with tin doped core-cladding interface

Details Optical fiber with tin doped core-cladding interface Optical fiber with tin doped core-cladding interface

2007-05-25

2009-02-17

Peng, Charlie (Department: 2883)

Optical waveguides

Having particular optical characteristic modifying chemical...

Of waveguide core

C385S124000, C385S126000, C385S141000, C065S385000

Reexamination Certificate

active

07493009

ABSTRACT:
The present invention concerns an optical fiber10comprising a substantially pure silica glass core12, a concentric tin-doped core/cladding interface region14, and a concentric fluorine-doped depressed cladding layer16. The tin-doped core/cladding interface region14comprises a low concentration gradient of tin dioxide, which advantageously results in a de minimis refractive index change, resistance to hydrogen incursion, and thermal stability of any fiber Bragg gratings written into the interface region14.

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