Solid laser fiber coupling alignment method and apparatus

• Main Author: LIU LIANGQING
• Format: Patent
• Language: English
• Published: 17.02.2016
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

The invention discloses a solid laser fiber coupling alignment method and apparatus. The method comprises a laser beam, a first visible indication light beam and a second visible indication light beam. The laser beam and the first visible indication light beam form a coaxial light beam, the coaxial light beam is coupled to the front end of a fiber through a first coupling apparatus, the second visible indication light beam, after being coupled to the rear end of the fiber through a second coupling apparatus, is output from the front end of the fiber and then forms a reverse light beam through collimation output of the first coupling apparatus, and the coaxial light beam or the reverse light beam is adjusted until the coaxial light beam and the reverse light beam are superposed. According to the invention, through arrangement of the reverse light beam output from the front end of the fiber, when the coaxial light beam is adjusted to be superposed with the reverse light beam, it is indicated that accurate alignment of solid laser fiber coupling is completed, the method is simple and flexible in structure, convenient to operate and quite high in alignment accuracy and can effectively improve the coupling efficiency of a solid laser fiber.