Patent ID: 6958854
Filing Date: 2005-10-25
Classification: G02F

Abstract:
1. A nonlinear optical mixer for converting energy from one wavelength to a plurality of other wavelengths, the nonlinear optical mixer comprising: a first cell containing a first pressure of a first Raman-active nonlinear material; a second cell containing a second pressure of a second Raman-active nonlinear material; a pump laser source for generating a pump laser beam, a portion of which is directed towards said first cell, wherein a first Stokes sideband is generated; a beamsplitter for combining and directing a second portion of said pump laser beam and said first Stokes sideband into said second cell; and wherein the frequency difference between the pump laser and the first Stokes sideband is adjusted, by suitable adjustment of the relative pressures of said first and second cells, to drive a selected Raman transition of said second cell with a controllable detuning, thereby maximizing both the Raman transition nonlinearity and the adiabaticity of the Raman two-photon interaction for a given choice of interacting electromagnetic field intensities.