Temperature verification experiment device

The utility model discloses a temperature verification experiment device, comprising a pumping source, a fast axis collimating lens, a slow axis collimating lens and a reflector, the fast axis collimating lens and the slow axis collimating lens are used for gathering laser emitted by the pumping source, the laser is collimated to become parallel light, the parallel light is arranged on one side of the pumping source in sequence, and the reflector is used for reflecting the laser emitted by the pumping source. The fast-axis collimating lens is arranged close to the pumping source, the pumping source, the fast-axis collimating lens and the slow-axis collimating lens are coaxially arranged and are arranged along a first direction, and the reflector is arranged on one side, opposite to the fast-axis collimating lens, of the slow-axis collimating lens in the first direction, a polarization splitting prism needing to be verified is installed at a preset position of the reflector in a second direction, and the secon