Optical waveguides – Optical fiber waveguide with cladding – Utilizing multiple core or cladding
Reexamination Certificate
2006-05-16
2006-05-16
Doan, Jennifer (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
Utilizing multiple core or cladding
C385S123000, C385S124000, C385S125000, C385S126000
Reexamination Certificate
active
07046889
ABSTRACT:
A dispersion shifter fiber, which has zero dispersion wavelength on a long wavelength side beyond 1640 nm, a wavelength dispersion of −1.0 to −10.0 ps
m/km at a wavelength range of 1530–1625 nm, a dispersion slope of less than 0.07 ps
m2/km, a polarization mode dispersion of not more than 0.1 ps/(km)1/2at a wavelength of 1550 nm, and a core cross-sectional area of 40–70 μm2at the wavelength of 1550 nm.
REFERENCES:
patent: 6282354 (2001-08-01), Jones et al.
patent: 6522819 (2003-02-01), Shimotakahara et al.
patent: 6556758 (2003-04-01), Kato
Doan Jennifer
Oblon, Spivak, McClellnad, Maier & Neustadt, P.C.
The Furukawa Electric Co. Ltd.
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