A stepped stimulated Brillouin scattering container and method

Abstract

Provided is a ladder type stimulated Brillouin scattering container. The height of the cross section of the container has ladder-like changes, the height is gradually reduced from the incidence end of light to the emergence end of light, and the number of ladders is at least two. When it is required that the included angle between two light beams incident to the stimulated Brillouin scattering container is delta, the intersection points of the incident plane of the two light beams on the container and the surface of the container is a and b respectively, the length between a and b is L1, the sum L2 of the length of the first segment of the container and the length of the second segment of the container should meet the formula shown in the specification, the height of the first segment is the maximum, the height of the second segment is smaller than that of the first segment, the height of the third segment is the minimum, H is the height or diameter of the second segment with the smaller height, and h is the height or diameter of the third segment with the smallest height. The container structure can generate enhanced stimulated Brillouin scattering signals.

Description

technical field [0001] The invention relates to a stimulated Brillouin scattering container and a scattering method using the container, belonging to the field of optical 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 have the same optical path, and the other is that the signal light and the pump light have crossing angles, each of which has advantages and disadvantages, and the same optical path The need to integrate the two beams of light that participate in stimulated scattering into exactly the same path generally adopts two methods, one is to use a half-mirror, and the other is to use a polarizing beam splitter, but in either case The prominent problem brought about is the loss of more light energy. For the case where there is a cross angle, it is not necessary to use a half mirror or a polarizing beam splitter, which will not ca...

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Problems solved by technology

[0003] The present invention is proposed in response to the above problems, and provides a stimulated Brillouin scattering container and a method for using the container to perform stimulated Brillouin scattering. Using the stimulated Brillouin scattering container of the present invention, by balancing the cross The number of times or the crossing angle and the length of the container can solve the problem that the intensity of stimulated Brillouin scattering light cannot be enhanced, so that significantly enhanced stimulated Brillouin scattering light can be obtained

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