为了研究气泡对激光的时间展宽问题，采用米氏光散射理论，对气泡的光散射特性以及多次散射效应进行了理论分析，并开展了实验研究，得到了气泡在不同距离时后向光散射信号波形。结果表明，气泡对激光脉冲的传输有明显的影响，导致了脉冲激光在时间上的展宽，信号展宽的宽度随距离近似呈二次曲线变化。

Aiming at temporal spreading of laser pulse by bubbles,theoretic analysis and exploratory research were made for the light scattering properties and the multiple scattering effect of wake bubbles by Mie light scattering theory,and some signal waves of light back-scattering from bubbles at different distance were gained. The results indicate that wake bubbles influence the transmission of laser in water,which makes laser pulse spread in time evidently.