Method of frequency comb generation, associated generation module, remote spectroscopy method and associated spectroscopy device

A method of generating frequency combs composed of a predetermined number of rays, the method comprising:

• modulation of a main ray generated by a laser source, by a first radiofrequency signal at a first frequency value, by a second radiofrequency signal at a second frequency value, and by a third radiofrequency signal at a third frequency value;
• the second frequency value being equal to twice the first frequency value;
• the third frequency value being equal to three times the first frequency value;
• and
• wherein the modulation by the first radiofrequency signal is performed with a modulation amplitude substantially equal to 1.6418 radians and a relative phase shift substantially equal to 21.8°.