| 摘要 |
PROBLEM TO BE SOLVED: To execute in-line compensation for and reduction of chirp, delay and noise including ASE in an optical signal that dynamically changes under an optical network environment, in an optical signal regenerator using a parametric process.SOLUTION: An optical signal regenerator comprises a phase retaining wavelength converter that uses a parametric process of optical waveguide which converts a frequency of carrier wave in a variable manner while retaining a phase of optical signal. The phase retaining wavelength converter is provided with an optical waveguide that has a dispersion slope S, a wavelength λ0 exhibiting a zero dispersion value and a third non-linear constant γ, for obtaining a relational expression so as to arrange an input wavelength near a peak wavelength λS in a short wavelength of parametric gain or a peak wavelength λL in a long wavelength of parametric gain and to arrange an output wavelength near the peak wavelength λL in the long wavelength of parametric gain or the peak wavelength λS in the short wavelength of parametric gain, respectively, and for using the relational expression to determine a wavelength λp of pump light and instantaneous intensity Pp of pump light of the phase retaining wavelength converter. |
