High SBS threshold optical fiber with fluorine dopant

Details High SBS threshold optical fiber with fluorine dopant High SBS threshold optical fiber with fluorine dopant

2007-06-05

2007-06-05

Pak, Sung (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

C385S127000

Reexamination Certificate

active

11450785

ABSTRACT:
The optical fiber comprises: (a) a core having a refractive index profile and a centerline; and (b) a cladding layer surrounding and directly adjacent the core; wherein core includes updoping material and is doped with F in at least one region of the core, such that either: (a) the average longitudinal acoustic wave velocity within the core is within 0.05% of the longitudinal acoustic wave velocity within the cladding; or (b) the longitudinal acoustic wave velocity at one region of the core is different from the longitudinal velocity at another region of the core by at least 0.2%.

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