Optical system capable of realizing multi-wavelength laser beam combination and splitting

Abstract

The invention discloses an optical system capable of realizing multi-wavelength laser beam combination and splitting. The optical systemcomprises a mechanical lens barrel, wherein an input end collimator, a coated lens and an output end collimator are sequentially fixed on a shaft hole of the mechanical lens barrel; each of the input end collimator and the output end collimator comprises a sleeve, and an optical fiber head and a collimating lens which are sequentially fixed on the sleeve; the optical fiber head of the input end collimator is a double-optical-fiber head; the collimating lenses of the input end collimator and the output end collimator are respectively arranged in the mechanical lens barrel and face the coated lens; and the coated lens is used for realizing anti-reflection on light with a specific wavelength and realizing high reflection on light with other wavelengths. According to the optical system, the multi-fiber collimators and the optical lenses are utilized to realize beam combination and beam splitting functions of multi-wavelength laser, the structure is more compact, and the size of the whole optical system can be greatly reduced.

Description

technical field [0001] The invention relates to the technical fields of biomedicine and optical applications, in particular to an optical system capable of combining and splitting multi-wavelength laser beams. Background technique [0002] In the field of biomedicine, the beam combining / splitting optical system of multi-wavelength lasers generally adopts the free space method, and the effect of laser beam combining or beam splitting is achieved by adding beam splitters and filters in the optical path, but the volume of the entire optical system Relatively large, not conducive to miniaturization design. Contents of the invention [0003] The purpose of the present invention is to provide a miniaturized optical system capable of combining and splitting multi-wavelength laser beams. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] An optical system capable of combining and splitting multi-wavelength laser beams, ...

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Problems solved by technology

[0002] In the field of biomedicine, the beam combining / splitting optical system of multi-wavelength lasers generally adopts the free space method, and the effect of laser beam combining or beam splitting is achieved by adding beam splitters and filters in the optical path, but the volume of the entire optical system Relatively large, not conducive to miniaturization design

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