Low attenuation large effective area optical fiber

Details Low attenuation large effective area optical fiber Low attenuation large effective area optical fiber

2007-03-06

2007-03-06

Pak, Sung (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

C385S126000

Reexamination Certificate

active

10835874

ABSTRACT:
An optical waveguide fiber having a multi-segmented core surrounded by a cladding, the core having a central segment and an annular segment surrounding the central segment. The central segment has a positive relative refractive index profile, and the annular segment has a negative relative refractive index profile. The optical fiber exhibits an effective area of greater than about 75 μm2at a wavelength of about 1550 nm, a dispersion slope of less than 0.07 ps
m2/km at a wavelength of about 1550 nm, a zero-dispersion wavelength of between about 1290 and 1330 nm, and an attenuation of less than 0.20 dB/km, and preferably less than 0.19 dB/km, at a wavelength of about 1550 nm.

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