摘要
介绍了光通信系统用ＳＡＷＦ系列的研制情况。由于采用了石英ＳＴ切晶体衬底、较先进的３指群和４指群抽指加权换能器和计算机辅助设计方法，器件的各主要技术指标均有明显提高，并达到国际同期商用器件水平。三次群、四次群、五次群系统用ＳＡＷＦＱ值分别达到２５０、６００和８００；插入损耗则达到１０ｄＢ左右。
A fabrication study of SAWF used in optical fiber communication systems is reported.By using ST-cut quartz substrate,a new structure of three-fingers and four-fingers group withdrawal-weighted IDT and computer-aided design methods,the main perfarmances of the fabricated SAWF are distinctly improved,the property is up to the standard of today's international commercial use.The Q value of the fabricated SAWF used in third-order,fourth-order and fifth-order group optical fiber communication systems are 250,600 and 800 respectively, the insertion loss is about 10 dB.
出处
《通信学报》
EI
CSCD
北大核心
1995年第2期112-114,共3页
Journal on Communications
关键词
光通信
声表面波滤波器
叉指换能器
surface acoustic wave filter
interdigital transducer
optical fiber communication
