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随着超快激光技术的发展,基于电光采样原理的超快激光电磁场测量技术也逐渐成为研究的热点。本课题组设计并制作了一款全介质型电磁场探针,并结合光纤飞秒激光器搭建了一套微波天线的近场测量系统,实现了100GHz附近频率的天线近场测量,测量结果与仿真结果吻合的很好。图1是实验装置示意图,该系统基于飞秒激光的超快电光取样原理,激光源为主动锁模光纤飞秒激光器,脉宽为70fs,重复频率为80MHz,输出平
With the development of ultra-fast laser technology, ultra-fast laser electromagnetic field measurement technology based on the principle of electro-optic sampling has also become a hot spot of research. The research group designed and fabricated an all-dielectric electromagnetic field probe, and combined with optical fiber femtosecond laser to build a microwave antenna near-field measurement system to achieve near-100GHz antenna near-field measurements, measurement results and simulation results Good fit. Figure 1 is a schematic diagram of the experimental setup. The system is based on the ultra-fast electro-optic sampling principle of femtosecond laser. The laser source is an actively mode-locked fiber femtosecond laser with a pulse width of 70fs and a repetition frequency of 80MHz.