The technique of stabilization of optical frequency difference between the radiation from two or more sources using the stimulated Brillouin scattering laser.

摘要

"Stabilization technique of optical frequency difference between the radiation from two or more sources using the stimulated Brillouin scattering laser.Refers to the present report a new technique for the stabilization of the difference between the frequ00b3u00eancia optic radiation from two or more sources of laser radiation.Using the nonlinear optical effect known as stimulated Brillouin scattering occurring in an optical fiber.It is proposed to use the phenomena known as Brillouin amplification and attenuation Brillouin to infer variations in the difference between the optical frequ00b3u00eancias from two sources of laser radiation.In these phenomena, the optical powers, amplified and attenuated by the Brillouin effect, depend on the difference between the two optical fields frequ00b3u00eancias interagentes.Therefore, monitoring if changes in optical power amplified or attenuated, it is possible to generate a signal capable of controlling the frequ00b3u00eancia issued from one of two sources of laser radiation.For the stabilization of the difference between the two frequ00b3u00eancia optic optical fields involved in the interaction.Three proposals of stabilization are presented, the first using only the phenomenon of Brillouin amplification, the second using just the phenomenon of attenuation Brillouin and, finally,A third using jointly the phenomena of amplification and attenuation resulting from the Brillouin effect.A system for opto electronic stabilisation using the Brillouin effect is also proposed as a way to make a scheme capable of stabilizing the difference between frequ00b3u00eancia issued more than DuThe sources of laser radiation.The proposed technique has been tested and validated in the laboratory and showed to be effective in stabilising the difference of frequ00b3u00eancia optics between two sources of laser radiation with high level noise in their helmet.Qu00b3u00eancias emission.