Optical fiber

Details Optical fiber Optical fiber

2007-12-04

2009-06-30

Rojas, Omar (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

Reexamination Certificate

active

07555186

ABSTRACT:
An improved optical fiber achieves both reduced bending and microbending losses, as well as a much higher Brillouin threshold, as compared to standard transmission fibers. The optical fiber comprises a core including at least two dopants and having a refractive index difference Δn1with an outer optical cladding, a first inner cladding having a refractive index difference Δn2with the outer cladding, and a depressed, second inner cladding having a refractive index difference Δn3with the outer cladding of less than −3×10−3. The radial concentration of at least one of the core dopants varies continuously over the entire core region of the optical fiber.

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