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

摘要

Many applications require the use of lasers having small optical line widths. Only, today, there is no module for refining a light source line satisfactorily and in particular that of a semiconductor laser. A spectral refinement method (500), a refined spectral line device (200) comprising at least one light source (210) and a spectral refinement module (100). The latter comprises at least a first coupler (111), a Brillouin resonator (120) and a modulator (130).