Optical fiber for metro network

Details Optical fiber for metro network Optical fiber for metro network

2006-10-03

2006-10-03

Healy, Brian M. (Department: 2883)

Optical waveguides

Optical fiber waveguide with cladding

C386S349000, C386S349000, C398S081000

Reexamination Certificate

active

07116876

ABSTRACT:
An optical fiber for an optical network is disclosed. The optical fiber includes a core having a core region having a first refractive index N1, and a refractive index depressed region surrounding the core region and having a second refractive index N2that is lower than the first refractive index. A clad surrounds the core and having a third refractive index N4. The optical fiber has a zero-dispersion wavelength that is not less than 1555 nm and positioned in a wavelength range which does not exceed L-band. The optical fiber has negative dispersion values in C-band and positive dispersion values in L-band.

REFERENCES:
patent: 6445864 (2002-09-01), Jiang et al.
patent: 6490398 (2002-12-01), Gruner-Nielsen et al.
patent: 6498887 (2002-12-01), Gruner-Nielsen et al.
patent: 6587627 (2003-07-01), Saitou et al.

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