Abstract: A THz laser source includes a first generator suitable for emitting at least one first light emission and one second light emission of frequencies that are multiples of a first reference frequency; a second generator suitable for emitting at least one first light emission and one second light emission of frequencies that are multiples of a second reference frequency different from the first reference frequency; the THz laser source furthermore comprises a nonlinear crystal suitable for forming, from the first light emissions emitted by each of the first and second generators, a THz light emission generated by difference-frequency generation, of frequency comprised between 0.3 THz and 10 THz; and at least one first frequency-stabilizing module allowing the frequency of one of the second emissions emitted by one of the first and second generators to be stabilized to an atomic transition.

Abstract: A THz laser source includes a first generator suitable for emitting at least one first light emission and one second light emission of frequencies that are multiples of a first reference frequency; a second generator suitable for emitting at least one first light emission and one second light emission of frequencies that are multiples of a second reference frequency different from the first reference frequency; the THz laser source furthermore comprises a nonlinear crystal suitable for forming, from the first light emissions emitted by each of the first and second generators, a THz light emission generated by difference-frequency generation, of frequency comprised between 0.3 THz and 10 THz; and at least one first frequency-stabilizing module allowing the frequency of one of the second emissions emitted by one of the first and second generators to be stabilized to an atomic transition.

Abstract: According to an aspect, the present description concerns a frequency-tunable laser source comprising: a set of N elementary sources (101-k), each elementary source being suitable for emitting a beam at a given central frequency (fk); an optical coupler (12) for coupling the beams emitted by each of the elementary sources in order to form a multi-spectral incident beam (Bin) regrouping all the frequencies of the N elementary sources in a same optical beam; a beam splitter (15) for forming, from the incident beam (Bin), a first beam (B1) and a second beam (B2), each regrouping all the frequencies of the elementary sources; a first tunable filter (16) for selecting, from the first beam (B1), a third beam (B3) at a first frequency (Fj); a second tunable filter (17) for selecting, from the second beam (B2), a fourth beam (B4) at a second frequency (Fl); a nonlinear frequency doubling crystal (18) for generating, from the third beam at the first frequency (Fj), a fifth beam (B5) having a frequency (F2j) which is tw

Abstract: According to an aspect, the present description concerns a frequency-tunable laser source comprising: a set of N elementary sources (101-k), each elementary source being suitable for emitting a beam at a given central frequency (fk); an optical coupler (12) for coupling the beams emitted by each of the elementary sources in order to form a multi-spectral incident beam (Bin) regrouping all the frequencies of the N elementary sources in a same optical beam; a beam splitter (15) for forming, from the incident beam (Bin), a first beam (B1) and a second beam (B2), each regrouping all the frequencies of the elementary sources; a first tunable filter (16) for selecting, from the first beam (B1), a third beam (B3) at a first frequency (F1); a second tunable filter (17) for selecting, from the second beam (B2), a fourth beam (B4) at a second frequency (); a nonlinear frequency doubling crystal (18) for generating, from the third beam at the first frequency (Fj), a fifth beam (B5) having a frequency (F2j) which is twic

Abstract: According to a first aspect, the invention relates to a generator of at least three coherent laser beams at least one beam of which is in the infrared domain and at least one beam of which is in the visible domain, comprising: an elementary source for emitting a first continuous-wave laser beam, at a first given infrared wavelength; a nonlinear crystal frequency doubler, allowing, from a first beam sampled from the first laser beam at the first wavelength, a second laser beam to be generated at a second wavelength; and a nonlinear crystal sum frequency generator, allowing, from a second beam sampled from the first laser beam at the first wavelength and from the second laser beam at the second wavelength, a third laser beam to be generated at a third wavelength.

Abstract: According to a first aspect, the invention relates to a generator of at least three coherent laser beams at least one beam of which is in the infrared domain and at least one beam of which is in the visible domain, comprising: an elementary source for emitting a first continuous-wave laser beam, at a first given infrared wavelength; a nonlinear crystal frequency doubler, allowing, from a first beam sampled from the first laser beam at the first wavelength, a second laser beam to be generated at a second wavelength; and a nonlinear crystal sum frequency generator, allowing, from a second beam sampled from the first laser beam at the first wavelength and from the second laser beam at the second wavelength, a third laser beam to be generated at a third wavelength.