Patent ID: 6101027
Filing Date: 2000-08-08
Classification: G02F,H01S

Abstract:
An all-optical wavelength converter using a semiconductor optical amplifier and a polarization interferometer comprising:a wavelength converter which modulates a probe light into a inverting waveform to a signal light and outputs the modulated light by using cross gain modulation, a phenomenon that occurs while the signal light and the probe light pass together through an optical splitter/combiner, a semiconductor optical amplifier and a filter at the same time;a polarization interferometer which makes the probe light outputted from the wavelength converter and having the inverting waveform to the signal light undergo a birefringence so that a predetermined time split occurs on it and provides a non-inverting wavelength conversion and suppresses the slow XGM components in the converted outputs due to the slow carrier recombination time.