Optical path system for optical fiber inscribing and optical fiber inscribing machine

The invention provides an optical path system for optical fiber inscribing and an optical fiber inscribing machine, and the system comprises a laser which is used for emitting laser; the mask plate is located on a conduction path of the laser, and the laser passing through the mask plate can form diffraction spots; the optical fiber fixing assembly is used for fixing the optical fiber, the diffraction light spot irradiates the optical fiber, and a light beam image is formed on the side, away from the mask plate, of the optical fiber; the focusing assembly is in signal connection with the control assembly, the focusing assembly is located on a conduction path of the laser and can receive the light beam image and feed back information of the light beam image to the control assembly, and the control assembly can judge whether the diffraction light spot is emitted to the center of the optical fiber or not according to the information of the light beam image. According to the invention, the cooperation of the opti