Optical fiber vortex light probe for generating and transmitting vortex light beam and preparation method of optical fiber vortex light probe

The invention discloses an optical fiber vortex light probe for generating and transmitting vortex light beams and a preparation method thereof, the tail end of the optical fiber vortex light probe is provided with a 3D printing spiral phase plate structure, the front end of the optical fiber vortex light probe is drawn into a conical probe, the optical fiber vortex light probe is formed by splicing two sections of ring core optical fibers, the spiral phase plate structure is printed at the tail end of one section of ring core optical fiber, and the spiral phase plate structure is drawn into the conical probe. A conical tip structure is drawn at the front end of the other section of ring core optical fiber; and the conical tip structures with different size parameters are replaced according to requirements. The preparation method comprises the following steps: taking two sections of optical fibers, 3D printing the spiral phase plate at the rear end of one section, tapering the front end of the other section,