Wavelength Converter based on cross-phase modulation using SOA and its Method

摘要

1. TECHNICAL FIELD OF THE INVENTION;The present invention relates to a wavelength conversion device of a mutual phase modulation method using a semiconductor optical amplifier and a method thereof.;2. The technical problem to be solved by the invention;The present invention enables to change the wavelength of an optical signal to a desired wavelength in a cross-phase modulation method using a semiconductor optical amplifier (SOA), and also by actively / passively adjusting the power of the probe light. An object of the present invention is to provide an interphase modulation method using a semiconductor optical amplifier and a method thereof, which can improve the extinction ratio change due to the change in gain characteristics of SOA according to the input wavelength of probe light.;3. Summary of the Solution of the Invention;The present invention provides an interphase modulation type wavelength converting apparatus applied to an optical switching system, comprising: data storage means for storing wavelength conditions and power conditions for a probe optical signal; Processing means for driving a first current supplying means in accordance with a wavelength condition for the stored probe light signal and for driving a second current supplying means in accordance with a power condition for the stored probe light signal; First current supply means for generating a current for generating a probe optical signal meeting the wavelength condition according to the driving of the processing means and supplying the current to the probe optical oscillation means; Second current supply means for generating a current for generating a probe optical signal meeting the power condition according to the driving of the processing means and supplying the current to the probe optical oscillation means; Probe optical signal generation means for generating a probe optical signal that satisfies the wavelength condition and the power condition according to the current supplied by the first current supply means and the second current supply means; And wavelength converting means for converting the input optical signal into an optical signal having the same wavelength as that of the optical signal generated from the probe optical oscillation means by using a cross-phase modulation method.;4. Important uses of the invention;The present invention is used for the wavelength conversion of optical signals in an optical exchange system.