An analysis of the operational parameters of an acousto-optic delay line (AODL) with direct detection, that is, the range of continuously controlled signal delay and the cutoff frequency of the passband, has been carried out. It is shown that the range of the smoothly controlled signal delay is limited by the maximum length of the photoelastic cell and the minimum velocity of propagation of the elastic wave in it. At the same time, the cutoff frequency is directly determined by the time of crossing the optical beam by the elastic wave packet. An equation for the transient response of the AODL was obtained, which was then used to study the nature of the dependence of the cutoff frequency of the transmission band on the diameter of the light beam and the velocity of propagation of an elastic wave in a photoelastic cell. The results of the numerical analysis were tested experimentally on the AODL model with direct detection.

通过直接检测对声光延迟线（AODL）的操作参数进行了分析，即连续控制的信号延迟范围和通带的截止频率。结果表明，平滑控制的信号延迟范围受光弹性单元的最大长度和弹性波在其中的最小传播速度的限制。同时，截止频率由弹性波包穿过光束的时间直接确定。获得了AODL的瞬态响应方程，然后将其用于研究传输带截止频率与光束直径以及光弹性中弹性波的传播速度的依赖关系的性质。细胞。