Efficient frequency conversion

摘要

The invention relates to an apparatus for generation of electromagnetic radiation, having a pump light source that emits an excitation radiation at a first wavelength, and having an optical waveguide that generates frequency-converted radiation at a second and a third wavelength, by means of degenerate wave mixing, from the excitation radiation of the pump light source.

主权项

1. An apparatus for generation of electromagnetic radiation, the apparatus comprising
a pump light source that emits an excitation radiation at a first wavelength, and an optical waveguide that generates frequency-converted radiation at a second and a third wavelength, via degenerate wave mixing, from the excitation radiation of the pump light source, and a filter element that is integrated into the optical waveguide and that attenuates the radiation at the second or third wavelength, thereby inducing a non-equilibrium in the photon counts at the second and third wavelengths in the optical waveguide such that a re-transfer process from the radiation at the second and third wavelengths to the exciton radiation is interrupted.