Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2005-04-12
2005-04-12
St. Cyr, Daniel (Department: 2876)
Optical waveguides
Optical fiber waveguide with cladding
C385S124000
Reexamination Certificate
active
06879762
ABSTRACT:
Disclosed is an optical transmission line having a length L of 30 km to 150 km, preferably 30 km to 70 km, an absolute value of a dispersion not smaller than 8 ps
m/km at a wavelength of 1.55 μm at every point of the optical transmission line, a maximum accumulated dispersion not larger than 7.5×L (ps
m) at a wavelength of 1.55 μm, and a dispersion for the entire optical transmission line of −5 to +5 ps
m/km at a wavelength of 1.55 μm. The optical transmission line is formed by, for example, combination of a positive dispersion optical fiber and a negative dispersion optical fiber.
REFERENCES:
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patent: 6178279 (2001-01-01), Mukasa et al.
patent: 6404967 (2002-06-01), Arai et al.
patent: 6556758 (2003-04-01), Kato
patent: 6724966 (2004-04-01), Mukasa
patent: 0192931 (2001-12-01), None
K. Mukasa, et al., 11thInternational Conference on Integrated Optics and Optical Fibre Communications, vol. 1, pp. 127-130, “Novel Network Fiber to Manage Dispersion at 1.55 μm with Combination of 1.3 μm Zero Dispersion Single Mode Fiber”, Sep. 22-25, 1997.
Y. Liu, et al., Optical Fiber Communication, vol. 2, pp. 165-166, “Large Effective Area Dispersion-Shifted Fibers with Dual-Ring Index Profiles”, Feb. 24-Mar. 1, 1996.
T. Kato, et al., Optical Fiber Communication Conference and Exhibit, vol. 6, p. 66, “Low Nonlinearity Dispersion-Shifted Fibers Employing Dual-Shaped Core Profile with Depressed Cladding”, Feb. 16-21, 1997.
Cyr Daniel St.
The Furukawa Electric Co. Ltd.
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