A single-mode optical fiber coupling device and method in a laser confocal optical path

Abstract

The present invention belongs to the technical field of single-mode fiber coupling and laser confocal imaging, and is specifically a single-mode fiber coupling device and method in a laser confocal optical path, comprising a coupling component and a bracket group; the coupling component comprises a laser; the laser output end is connected to one end of a single-mode fiber 1, and the other end of the single-mode fiber 1 is connected to an input end of a collimator; the collimator output end refracts light into a coupler through a dichroic mirror for coupling, and the coupler is installed at the refraction end of the dichroic mirror; a CCD camera is installed at the transmission end of the dichroic mirror for monitoring; the coupler output end is connected to one end of a single-mode fiber 2, and the other end of the single-mode fiber 2 is connected to an optical power meter. The bracket group comprises a collimator bracket, a dichroic mirror bracket and a coupler bracket, which respectively clamp the collimator, the dichroic mirror and the coupler. The present invention utilizes the real-time imaging function of the CCD camera to achieve precise alignment of the laser beam and improve the coupling efficiency of the single-mode fiber.

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