Temperature tuning type Fe: ZnSe laser based on thermoelectric refrigeration

The invention discloses a temperature tuning type Fe: ZnSe laser based on thermoelectric refrigeration in the field of lasers. The temperature tuning type Fe: ZnSe laser comprises a Fe: ZnSe crystal, a pumping laser source, a semiconductor thermoelectric refrigeration device and a laser resonant cavity; the pump laser source emits pump light, and the pump light passes through the pump light shaping and coupling element and then enters the Fe: ZnSe crystal; the Fe: ZnSe crystal is arranged in the laser resonant cavity; the Fe: ZnSe crystal is fixed on the heat sink, and the heat sink is connected with the semiconductor thermoelectric refrigeration device; the Fe: ZnSe crystal and the heat sink are arranged in the vacuum cavity; the operating temperature of the Fe: ZnSe crystal in the laser is regulated and controlled in a large range through the semiconductor thermoelectric refrigeration device, so that effective regulation and control of fluorescence lifetime of different spectra are realized, and tunable mid