Fiber laser with adjustable light beam quality and method for outputting adjustable laser

Abstract

The invention provides a fiber laser with adjustable light beam quality and a method for outputting adjustable laser. The fiber laser comprises a laser light source, an energy transmission fiber, a light beam quality control module driving source and a light beam quality control module. The light beam quality control module comprises a mode scrambler and a pusher; the mode scrambler is installed at the movable end of the pusher, the laser light source is communicated with the energy transmission fiber, the energy transmission fiber is installed in the mode scrambler, and the light beam qualitycontrol module is electrically connected with the pusher so as to adjust the pusher according to a driving source of the light beam quality control module, so that the pusher controls the mode scrambler to extrude the energy transmission fiber. According to the fiber laser with the adjustable light beam quality, the light beam quality control module driving source drives the light beam quality control module to work, so that the pusher can control the mode scrambler to extrude the energy transmission fiber, and the energy transmission fiber can generate bending deformation of different degrees to generate a mode coupling effect according to different input parameters; and thus, laser with continuously adjustable beam quality M2 can be output.

Description

technical field [0001] The invention relates to the field of fiber lasers, in particular to a fiber laser with adjustable beam quality and a method for outputting adjustable laser light. Background technique [0002] As a type of laser with doped fiber as the gain medium, fiber laser has become a new generation of Representative of laser technology. [0003] The characteristics and advantages of the double-clad fiber laser lie in its unique waveguide structure, which can achieve near-diffraction-limited single-mode laser output, but the limitation of single-mode conditions makes the core diameter of the fiber still small, and the use of thick-core multimode fiber Although the laser output solves the possible optical damage and nonlinear effects of the fiber end face under high power, the beam quality of the output laser decreases. In industrial applications, there are often different requirements for the beam quality of high-power fiber laser systems. Contents of the inv...

AI Technical Summary

Problems solved by technology

[0003] The characteristics and advantages of the double-clad fiber laser lie in its unique waveguide structure, which can achieve near-diffraction-limited single-mode laser output, but the limitation of single-mode conditions makes the core diameter of the fiber still small, and the use of thick-core multimode fiber Although the laser output solves the possible optical damage and nonlinear effects of the fiber end face under high power, the beam quality of the output laser decreases

Images