High-power laser-splitting optical fiber device

The utility model discloses a high-power laser-splitting optical fiber device. The high-power laser-splitting optical fiber device comprises a solid laser, wherein a semi-transparent semi-reflector I, a semi-transparent semi-reflector III and a fusing lens II are arranged on a linear light path of a laser beam; a semi-transparent semi-reflector II and a total reflector I are arranged on the right side of the semi-transparent semi-reflector I; a total reflector II is arranged on the left side of the semi-transparent semi-reflector III; a focusing lens I is arranged on the light path of reflection light of the total reflector II; a focusing lens III is arranged on the light path of the reflection light of the semi-transparent semi-reflector II; a focusing lens IV is arranged on the light path of reflection light of the total reflector I; the focusing lens I, the focusing lens II, the focusing lens III and the focusing lens IV are respectively connected with the an optical fiber I, an optical fiber II, an optical fiber III and an optical fiber IV. The high-power laser-splitting optical fiber device is compact in structure and convenient to operate, is capable of coupling the laser beam into the optical fibers in a manner of dividing one laser beam into four laser beams or dividing one laser beam into two laser beams; a plurality of functions are achieved; the whole-machine coupling efficiency reaches over 85%.