Patent ID: 7522799
Filing Date: 2009-04-21
Classification: G02B,G02F

Abstract:
1. An all-optical memory latch receiving first and second optical input signals having respective amplitude-modulated binary logic levels and continuous wave (CW) light having an amplitude at the more intense binary logic level, the all-optical memory latch comprising: a first logic gate configured with, in series, a first medium, a first nonlinear element, a second medium and a second nonlinear element, the first medium combining the first optical input signal and a restored second optical output signal, the first nonlinear element comprising a nonlinear element with optical resonator nonlinearly discriminating the combined first and third optical input signals to generate a first optical output signal, the second medium combining the first optical output signal and CW light, and the second nonlinear element comprising an optical resonator nonlinearly discriminating the combined first optical output signal and the CW light to restore the more intense binary logic level of the first optical output signal; and a second logic gate configured with, in series, a first medium, a first nonlinear element, a second medium and a second nonlinear element, the first medium combining the second optical input signal and a fourth optical input signal, the first nonlinear element comprising an optical resonator nonlinearly discriminating the combined second and fourth optical input signals to generate a second optical output signal, the second medium combining the second optical output signal and CW light, and the second nonlinear element comprising an optical resonator nonlinearly discriminating the combined second optical output signal and the CW light to restore the more intense binary logic level of the second optical output signal; and