Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2005-05-31
2005-05-31
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
C385S124000, C398S081000
Reexamination Certificate
active
06901195
ABSTRACT:
An optical fiber suitable for the WDM transmission in the wavelength bands of 1.31 μm and 1.55 μm is provided. An optical fiber is characterized by a zero dispersion wavelength of longer than 1330 nm and shorter than 1430 nm, a dispersion of not less than 6 ps
m/km and not more than 15 ps
m/km at a wavelength of 1550 nm, a ratio of a dispersion to a dispersion slope of not less than 200 nm and not mare than 400 nm at a wavelength of 1550 nm, a dispersion of not more than −1 ps
m/km and not less than−8 ps/mn/km at 1300 nm, and a cutoff wavelength of 1300 nm or shorter.
REFERENCES:
patent: 4715679 (1987-12-01), Bhagavatula
patent: 6487353 (2002-11-01), Kato et al.
patent: 6681082 (2004-01-01), Tanaka et al.
patent: 6714705 (2004-03-01), Lin et al.
Kawasaki Mitsuhiro
Takahashi Fumio
Lin Tina M
Robinson Eric J.
Robinson Intellectual Property Law Office P.C.
The Furukawa Electric Co. Ltd.
Ullah Akm Enayet
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