Laser endoscope and light source system thereof

The invention discloses a laser endoscope and a light source system thereof, the light source system comprises a laser light source assembly and a fly's-eye lens assembly, the fly's-eye lens assembly is composed of n micro-lens arrays, the minimum side length or diameter of a single micro-lens is greater than the coherent length of laser emitted by the laser light source assembly, laser emitted by the laser light source assembly is collimated and then passes through the fly-eye lens assembly to form n speckles, and the n speckles are superposed, wherein n is a positive integer. According to the laser endoscope and the light source system thereof provided by the invention, first-time speckle elimination is realized through the fly-eye lens assembly; the diffuse scatterer is arranged in a matched mode to achieve second-time speckle dissipation, and the image quality of the laser endoscope is guaranteed. And the optical expansion amount of the laser is expanded by multiple times, so that the damage of the laser