Optical: systems and elements – Optical frequency converter – Dielectric optical waveguide type
Patent
1994-09-23
1996-07-02
Lee, John D.
Optical: systems and elements
Optical frequency converter
Dielectric optical waveguide type
385 24, 385122, G02F 135
Patent
active
055328687
ABSTRACT:
An apparatus and method for providing dispersion compensation for chromatic dispersion introduced in the signal conversion of an optical signal. An exemplary apparatus in accordance with the present invention includes a nonlinear conversion medium arranged within an optical signal path of the optical signal. The conversion medium receives the optical signal and generates a converted optical signal therefrom. At least one dispersion compensator is arranged within the signal path to provide an amount of chromatic dispersion suitable to offset a portion of the chromatic dispersion introduced in the converted signal by the nonlinear conversion medium. The nonlinear medium may be a length of dispersion-shifted fiber used to phase conjugate and/or frequency shift an input optical signal in an optical system utilizing, for example, optical phase conjugation to cancel the effects of fiber nonlinearities. The dispersion compensator may be placed in the optical signal path either before or after the nonlinear conversion medium, or may be distributed within the medium.
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Gnauck Alan H.
Jopson Robert M.
AT&T Corp.
Lee John D.
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