Optical waveguides – Optical fiber waveguide with cladding – With graded index core or cladding
Reexamination Certificate
2008-07-29
2008-07-29
Hughes, James P. (Department: 2883)
Optical waveguides
Optical fiber waveguide with cladding
With graded index core or cladding
C385S123000, C385S125000, C385S126000, C385S142000, C385S144000, C065S419000, C264S001240
Reexamination Certificate
active
10934723
ABSTRACT:
A graded-index multimode fiber includes a core made of silica glass, the core having a central region and an outer peripheral region, and a cladding which is provided at an outer periphery of the core. The central region contains one of germanium and phosphorus, and the outer peripheral region contains fluorine.
REFERENCES:
patent: 4082420 (1978-04-01), Shiraishi et al.
patent: 4335934 (1982-06-01), Black et al.
patent: 4372647 (1983-02-01), Okamoto et al.
patent: 4478622 (1984-10-01), Olshansky
patent: 4664474 (1987-05-01), Tanaka et al.
patent: 5702497 (1997-12-01), Oh et al.
patent: 6529666 (2003-03-01), Dultz et al.
patent: 2002/0136515 (2002-09-01), Schaper et al.
patent: 2003/0099451 (2003-05-01), Walker et al.
patent: 2003/0118305 (2003-06-01), Reed et al.
patent: 2004/0086245 (2004-05-01), Farroni et al.
M. Onishi et al., “Dispersion Compensating Fibre with a High Figure of Merit of 250ps
m/dB”, Electronics Letters, IEE Stevenage, GB, vol. 30, No. 2, Jan. 20, 1994, pp. 161-163.
E. A. J.Marcatili, “Modal Dispersion in Optical Fibers with Arbitrary Numerical Aperture and Profile Dispersion”, Bell System Technical Journal, American Telephone and Telegraph Co., New York, U.S., vol. 56, No. 1, 1977, pp. 49-64.
O. V. Butov et al., “Refractive Index Dispersion of Doped Silica for Fiber Optics”, Optics Communications, North-Holland Publishing Co., Amsterdam, NL, vol. 213, No. 4-6, Dec. 1, 2002, pp. 301-308.
G. Yabre, “Comprehensive Theory of Dispersion in Graded-Index Optical Fibers”, Journal of Lightwave Technology, IEEE, new York, U.S., vol. 18, No. 2, Feb. 1, 2000, pp. 166-177.
R. Olshansky, “Propagation in Glass Optical Wavelengths”, Review of Modern Physics, vol. 51, No. 2, Apr. 1979.
E. A. J. Marcatili, “Modal Dispersion in Optical Fibers with Arbitrary Numerical Aperture and Profile Disperion”, The Bell System Technical Journal, vol. 65, No. 1, pp. 49-63, 1977.
Guan Ning
Himeno Kuniharu
Takenaga Katsuhiro
Fujikura Ltd.
Hughes James P.
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