在惯性约束聚变（ICF）研究中，为了更好地对点火前分解实验的精密时间过程进行高精度的测量，提出一种新型的高时间分辨的光扫描装置。该装置根据光生载流子效应、波导传输和棱镜色散原理，采用全光学元件避免了空间电荷效应的影响。同时，瞄准1 ps的时间分辨能力，对该装置的关键部件光扫描模块进行了计算设计与模拟分析，通过光路仿真进行验证。结果表明该扫描装置能够使信号光发生偏转效应得到时间空间转换，进而为下一步的模块制作和实验研究提供良好的理论依据。

For more precise measurements of the temporal evolution of plasma in the study of inertial confinement fusion (ICF), a novel optical streak camera with ultrahigh temporal resolution is proposed. Based on the photo-generated carrier effects, waveguide transmission and prism dispersion principle, this all-optical device can avoid the influence of the space charge effect. Then the key component in the camera, the optical scanning module, is designed and simulated through an emulator aiming at 1 ps time resolution capability. Results show that this module can deflect the signal light and transform the information it contains from time domain into space domain, which verifies the feasibility of such system and its benefits for the following experiments.