SPECTRAL REFINEMENT MODULE, DEVICE WITH REFINED SPECTRAL LINE AND ASSOCIATED METHOD

摘要

Many applications require the use of lasers with short optical ray lengths. However, at present, there is no module that makes it possible to refine a ray from a light source in a satisfactory manner, in particular one from a semiconductor laser. The invention relates to a spectral refinement method (500), a device with refined spectral line (200) comprising at least one light source (210) and a spectral refinement module (100). The latter includes at least one first coupler (111), a Brillouin resonator (120) and a modulator (130).