摘要
介绍了一种由在ＳＴ切石英晶体上制成的声表面波器件驱动，工作频率为５０ＭＨｚ的单模光纤声光移频器．在单模光纤模式理论和声表面波理论的基础上，探讨了二者的相互作用及实现调制的机理．对该器件进行的测试结果表明，利用单模光纤作为调制信号载体。
A new type frequency shifter is introduced,which is 50MHz drived by interdigital transducers of surface acoustic wave(SAW) device on a ST cut α SiO 2 substrate.In the paper interaction between a single mode fiber′ s and SAW′ S theory is briefly discussed.The result shows that this frequency shifter is feasible.
出处
《首都师范大学学报（自然科学版）》
1999年第2期24-27,共4页
Journal of Capital Normal University：Natural Science Edition
基金
北京市教委资助项目
关键词
单模光纤
声光移频器
声光器件
移频器
Single mode optical fiber,surface acoustic wave,acousto optic interaction,frequency shifter.
