用于光纤声光器件的超声换能器与模式转换器

Ultrasonic Transducer and Mode-conversion System for Optical Fiber Acousto-optic Device

研制了一种可用于全光纤声光器件的超声换能器,设计了由光纤和换能器构成的纵-弯模式转换系统,并将所作的换能器和模式转换系统应用于光纤声光可变衰减实验。结果表明,设计的换能器既有较宽带宽又有较高发射效率,完全可以满足全光纤声光器件的需要。

A type of transducer for all-fiber acousto-optic device is fabricated, and longitudinal-flexural vibratingconversion system consisting of transducer and fiber is setup. The acousto-optic variable attenuation experimental results show that such transducer with the advantage of high conversion efficiency, wideband, low power consumption can meet the requirement of operation for the all-fiber acousto-optic devices.