设计并研制了以全金属射频波导CO2激光器为抽运源的太赫兹(THz)激光器,其中THz激光工作气体为CH3OH气体,在波长为9.69μm的P9(36)支CO2脉冲激光抽运情况下,获得了脉冲THz激光输出。实验上测量了脉冲抽运光及THz激光波形及重复频率,抽运光由宽带室温HgCdTe探测器测试,最高重复频率为5 kHz。THz激光由热释电探测器接收,由于受探测器限制,实验上测量的THz激光波形失真,最高重复频率为1 kHz。另外研究了输出THz激光强度与工作气压的关系,测出此系统最佳工作气压为10 Pa左右。研制的THz激光器为全金属结构,不用水冷,具有结构简单、体积小的优点,可以为相关研究提供参考。 A THz laser with a full metal RF waveguide CO2 laser as the pumping source was designed and developed. The working gas of the THz laser is CH3OH. When P9 (36) CO2 laser with a wavelength of 9.69μm is pumped , A pulsed THz laser output was obtained. The pulsed laser light and THz laser waveform and repetition frequency were measured experimentally. The pump light was tested by a broadband room temperature HgCdTe detector with a maximum repetition frequency of 5 kHz. The THz laser is received by a pyroelectric detector and the experimentally measured THz laser waveform is distorted to a maximum of 1 kHz due to detector limitations. In addition, the relationship between output THz laser intensity and working pressure was studied. The optimum operating pressure of this system was found to be about 10 Pa. The developed THz laser is an all-metal structure without water cooling, has the advantages of simple structure and small volume, and can provide reference for related research.