Patent ID: 9019019
Filing Date: 2015-04-28
Classification: G02F,H03B

Abstract:
1. Oscillator generating a wave composed of a frequency of on the order of terahertz from a beat of two optical waves generated by a dual-frequency optical source, wherein the oscillator comprises: a modulator the transfer function of which is non-linear for generating harmonics with a frequency of less than one terahertz for each of the optical waves generated by the dual-frequency optical source by modulating the optical waves generated by the dual-frequency optical source by a radio or micro wave frequency, an optical detector able to detect at least one harmonic for each of the optical waves generated by the dual-frequency optical source and to transform the harmonics detected into a beat signal, a phase comparator for comparing the beat signal with a reference beat signal, circuitry causing the oscillator to perform controlling at least one element of the dual-frequency optical source with a signal obtained from the signal resulting from the comparison.