Patent ID: 6624929
Filing Date: 2003-09-23
Classification: G02F,H01S

Abstract:
A system for implementing an All-Optical Logic AND operation in a SOA-Based Mach-Zelinder Interferometer, comprising:an optical fiber mode-lock laser that produces optical signals for a predetermined operation speed; an optical attenuator that dampens the optical signals; a multiplexer; a first optical delay line that delays a speed of the signals; a 3-dB optical fiber coupler that separates optical intensity of the signals 50:50; a polarization controller that polarizes a first branch of the signals to obtain an optimized optical wavelength efficiency; a second optical delay line that delays a speed of the polarized signals; an optical isolater that transmits optical waves; a cross-phase modulation (XPM) wavelength converter, comprising a plurality of wave guides; an Erbium doped optical fiber amplifier that receives a second branch of the signals via the optical fiber coupler; an optical wavelength filter that filters the output of the XPM wavelength converter; and an optical signal analyzer; wherein an input signal A is normally outputted as an output signal C by controlling a current of the plurality of wave guides of the XPM wavelength converter; and wherein a delay time of the input signal A is controlled via the second optical delay line to be synchronized with an input signal B, from the Erbium doped optical fiber amplifier, so that the logic AND operation between the input signal A and the input signal B is performed.