利用不同长度的单模石英光纤制作光纤时-空采样器,将采样激光输入大面积快速光电转换器,用数字示波器测量电脉冲信号,实现对单脉冲激光的实时采样测量.其核心是利用单模石英光纤的芯径小、结构尺寸规范、损伤阈值高等特点,实现对激光光束的无畸变大倍率衰减.给出了相关的设计方案.

A new instrument and a method concerning measurement of pulsed laser multi-parameters are proposed by one sample, based on a bunch of single-mode fibers which are designed serial number with different lengths. Its advantages are high damage threshold and real temporal-spatial domain sample, and a large of attenuation without aberration. By an O-E probe with a big sense area, the laser signal from the bunch of fibers transforms a list of electrical waveforms that could be real-time displayed on digital storage oscilloscope, which would measure real-time for laser parameters of single pulse. Meanwhile, several designs are presented.