Patent ID: 8797639
Filing Date: 2014-08-05
Classification: G02F,H04B

Abstract:
1. A method of processing an optical signal comprising: combining, by means of Bragg scattering, an input optical signal having a peak amplitude and a carrier frequency with a first pulsed pump signal having a first waveshape and a second pulsed pump signal having a second waveshape, thereby generating a combined optical signal; inputting the combined optical signal in a nonlinear optical material for causing said input optical signal, said first pulsed pump signal and said second pulsed pump signal to interact with each other so as to generate an idler signal, said idler signal having a carrier frequency which is different from the carrier frequency of the input optical signal; and wherein the first pulsed pump signal co-propagates with the input optical signal and the second pulsed pump signal co-propagates with the idler signal, and wherein the idler signal has a peak amplitude proportional to the peak amplitude of the input optical signal and a shape corresponding to the second pump waveshape.