Multi-axis tunable optical fiber loading clamp applied to femtosecond laser inscribing grating

The utility model discloses a multi-axis tunable optical fiber loading clamp applied to femtosecond laser inscribing gratings. The multi-axis tunable optical fiber loading clamp comprises an upper optical flat plate; the upper optical flat plate and the lower optical flat plate are arranged up and down; the top surface of the upper optical flat plate is provided with the optical fiber clamp, and the optical fiber clamp is used for fixing an optical fiber; the adjusting assembly is arranged between the upper optical flat plate and the lower optical flat plate; the adjusting assembly comprises three differential adjusting knob assemblies. According to the multi-axis tunable optical fiber loading clamp applied to the femtosecond laser inscribing grating, an optical fiber is placed on the optical fiber clamp to be fixed, the three differential adjusting knob assemblies between the upper optical flat plate and the lower optical flat plate are adjusted, so that the upper optical flat plate and the lower optical fla