Container used for stimulated Brillouin scattering

Abstract

The invention discloses a container used for stimulated Brillouin scattering. The container used for the stimulated Brillouin scattering comprises a parabolic reflector, a semi-transmitting semi-reflecting mirror and a spherical stimulated Brillouin scattering medium container, wherein the parabolic reflector, the semi-transmitting semi-reflecting mirror and the spherical stimulated Brillouin scattering medium container are arranged along an optical path in sequence. The container used for the stimulated Brillouin scattering is characterized in that the center of the parabolic reflector is provided with a through hole used for laser beams to pass; the semi-transmitting semi-reflecting mirror is located on the first focus of the paraboloid of the parabolic reflector; the center of sphere of the spherical stimulated Brillouin scattering medium container is located on the second focus of the paraboloid; the semi-transmitting semi-reflecting mirror is rotatable; and the revolution axis of the semi-transmitting semi-reflecting mirror is located on the first focus.

Description

technical field [0001] The invention relates to stimulated Brillouin scattering, in particular to a container for liquid or gas stimulated Brillouin scattering, which belongs to the field of optoelectronic technology. Background technique [0002] The stimulated Brillouin scattering devices in the prior art are generally divided into two types, one is that the signal light and the pump light are in the same optical path, and the other is that the signal light and the pump light have a cross angle. Stimulated Brillouin scattering has different containers for containing corresponding liquids or gases. For stimulated Brillouin scattering with the same optical path, the corresponding containers are generally transparent cylinders or regular rectangles or squares , when performing stimulated Brillouin scattering experiments, it is only necessary to sequentially inject the laser for generating signal light and the laser for amplification in the same optical path, and there is stim...

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Problems solved by technology

[0002] The stimulated Brillouin scattering devices in the prior art are generally divided into two types, one is that the signal light and the pump light are in the same optical path, and the other is that the signal light and the pump light have a cross angle. Stimulated Brillouin scattering has different containers for containing corresponding liquids or gases. For stimulated Brillouin scattering with the same optical path, the corresponding containers are generally transparent cylinders or regular rectangles or squares , when performing stimulated Brillouin scattering experiments, it is only necessary to sequentially inject the laser for generating signal light and the laser for amplification in the same optical path, and there is stimulated Brillouin scattering with an included angle between signal light and pump light For example, Harbin Institute of Technology invented some corresponding containers, but there is a defect in these containers. In order to minimize the reflected light, it is necessary to keep the incident angle of the laser beam at 90 degrees, so for a specific medium pool In other words, the angle between the two laser beams is fixed, because the two incident surfaces of the container itself are fixed for incident two laser beams, so such a container can only complete the experimental process of a fixed angle, if the experiment It is basically impossible to change the angle between the two laser beams during the process, but in many cases we need to change the angle between the two laser beams, and in essence, the same optical path only has an angle A special case of the situation, that is, the included angle is zero degrees. In view of the above situation, it is necessary to prepare containers with different angles, not to mention the high cost, and it will take up a lot of space in storage and use. For limited experiments For desks, it is often necessary to save as much space as possible

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