新型的光纤型声光器件

New Fiber-Optie Acoustooptic Devices

声光效应与光纤技术相结合制成的一系列新型的光纤型声光器件,如抽头、幅度调制器、移频器以及相位调制器等,目前越来越受到人们的关注.本文简要介绍国外对这些器件的研制进展、工作原理、结构、性能及其应用等,并对各种不同的实验结构分别进行分析比较,展望了其发展前景.

A series of new fiber-optie acouslooplic devices, such as tap, amplitude modulator, frequency shifter and phase modulator, fabricated by the combination of fiber-optie and acoustooptic technologies are now attract more and more peo-ple. In this paper, the development of these devices in some foreign countries, its operating principles, structures, performances and its possible applicalions are briefly described.The different experimental structures are analyzed and compared respectively. Finally, its future development is predicled.