Optical pumping vector light beam solid laser

Abstract

The invention relates to an optical pumping vector light beam solid laser. Based on the working principle of a solid layer, a solid gain dielectric element coated with a laser reflecting film and a circular conical surface light field returning element form a laser resonant cavity. The circular conical surface light field returning element is built through combining the polarization selection characteristics of a Brewster angle, and serves as a resonant cavity lens. The selection of a polarization state is achieved through the Brewster angle, and a radial polarized vector light beam in a cavity is generated. The strong focusing of the radial polarized vector light beam in the cavity is achieved based on an annular conical curved surface, thereby achieving the output of a longitudinal polarized optical field. The laser is simple in manufacturing technology, is simple in structure, is convenient in construction, is convenient to install and adjust, is high in reliability and flexibility, and is wide in application range. The laser can achieve the output of the longitudinal polarized optical field, can achieve mode selection output in the laser resonant cavity, and is high in quality of an output light beam.

Description

technical field [0001] The invention relates to an optical technology, in particular to an optically pumped vector beam solid laser. Background technique [0002] A laser is a device that uses the principle of stimulated radiation to amplify or oscillate light in certain excited substances. At present, common laser generating devices include gas lasers, solid-state lasers, dye lasers, and semiconductor lasers. Recent literature has also shown new lasers such as nano-lasers and living biological lasers. The working substance of the solid-state laser is composed of optically transparent crystal or glass as the matrix material of the solid-state laser, doped with active ions or other active substances. Such working substances should generally have good physical-chemical properties, narrow fluorescent spectral lines, strong and broad absorption bands and high fluorescent quantum efficiency. Solid-state lasers are widely used in the fields of laser processing, photoelectric det...

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