Nonlinear optical fiber and optical signal processing...

Optical waveguides – Optical fiber waveguide with cladding

Reexamination Certificate

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C385S122000, C385S127000

Reexamination Certificate

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11128209

ABSTRACT:
The present invention provides an optical fiber of a high nonlinear characteristic which has low dispersion values in a wide wavelength region in the vicinity of a wavelength of 1550 nm. An excellent optical signal processing apparatus is realized by using this optical fiber, such as an optical wavelength converter and a pulse compressor. The optical fiber has characteristics; a dispersion slope at the wavelength of 1550 nm of −0.01 to 0.01 ps
m2/km, an absolute value of dispersion at the wavelength of 1550 nm of 10 ps
m/km or less, and a nonlinear constant at the wavelength of 1550 nm of 30×10−10/W or more. A polarization retaining maintaining members are uniquely applied.

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patent: 1 209 497 (2002-05-01), None
patent: 2002-207136 (2002-07-01), None
M. Onishi et al. Highly nonlinear dispersion-shifted fibers and their application to broadband wavelength converter. Optical Fiber Technology 4, 204-214, Apr. 1998.
J. Hiroishi et al. Dispersion slope controlled HNL-DSF with high gamma of 25/W/km and band conversion experiment using this fiber. 2002 European Conference on Optical Communication, vol. 5, pp. 1-2, Sep. 2002.
M. Takahashi et al. Low-loss and low-dispersion-slope highly nonlinear fibers. Journal of Lightwave Technology, vol. 23 No. 11, pp. 3615-3624, Nov. 2005.

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