The interaction between sound and light and the principles and characteristics of acousto optic tunable filter are described. 概述了声光(AO)相互作用,介绍了声光(AO)可调谐滤光器(AOTF)的原理、结构、特性及应用。
Fiber acousto optic devices are based on coupling between two copropagating modes caused by ultrasonic grating in the fiber. 光纤声光(AO)器件是基于光纤中的超声光(AO)栅引起的两个光波同向模式间的耦合。
Controlling exposure power by means of acousto optic modulator is critical for the performances of the fabricated devices. 利用声光(AO)调制器对曝光功率进行精确控制对所制作器件的性能是至关重要的。
In this paper, the principle of weighted directional coupler and its application in apodization of integrated acousto optic tunable filter ( IAOTF ) have been analyzed and discussed. 理论分析了权重耦合的声指向耦合器的原理及其在滤波器切趾中的应用,并且根据理论设计了声波导的方案,分析了应用这种声波导的滤波器的转换特性。
The characteristics of fiber acousto optic coupled ring resonators were studied. 研究了光纤声光(AO)耦合环形腔独特的谐振特性。