马伯文同学的工作——Investigation on Four-Wave-Mixing-Based Temporal Measurement of Low-Power-Density Optical Pulse的相关研究成果近期被IEEE Photonics Technology Letters杂志接收，该工作得到了国家自然科学基金的部分资助 (grant no. 61822508, 61571292 and 61535006)。
摘要：We theoretically and experimentally investigate an all-optical temporal measurement of low-power-density optical pulse shape based on the four-wave-mixing (FWM) process. It is found that two parameters of the pulse width ratio and frequency difference of the two optical sources are crucial to the measurement accuracy. The qualitative analysis of the impact of the two parameters on the measurement accuracy is employed by simulation. The normalized error denoting the measurement accuracy becomes worse when the pulse width ratio becomes larger whereas keeps relatively stable when various overlappingfree frequency differences are applied. In the experiment, temporal measurement of an actively mode-locked laser (AMLL) with ~10 picoseconds duration at a repetition frequency of 20.095 GHz is demonstrated, verifying the simulation analysis.