Development of Raman acousto-optic frequency shifter based on SAW  

作　　者：王春梅 温志渝 张祖伟 张颖异 

机构地区：[1]Key Laboratory of Fundamental Science on Micro/Nano-Device and System Technology, Chongqing University [2]National Center for International Research of Micro/Nano-System and New Material Technology, Chongqing University [3]Microsystem Research Center of Chongqing University

出　　处：《Journal of Semiconductors》2014年第8期104-109,共6页半导体学报（英文版）

摘　　要：A Raman acousto-optic frequency shifter （AOFS） based on surface acoustic wave （SAW） is presented. It consists of a double-ended SAW resonator and optical waveguide system. The structure parameters of the SAW resonator are optimized using COM software and the optical waveguide system is designed using an effective index method. The AOFS prototype fabricated using MEMS technology is detected. The optical beat signals su- perimposed by ± 1st-order and ±2nd-order diffracted beams are detected. The frequency shift of 78.2201 MHz related to the 1 st-order diffracted beams and 156.2306 MHz related to the 2nd-order diffracted beams are obtained respectively.A Raman acousto-optic frequency shifter （AOFS） based on surface acoustic wave （SAW） is presented. It consists of a double-ended SAW resonator and optical waveguide system. The structure parameters of the SAW resonator are optimized using COM software and the optical waveguide system is designed using an effective index method. The AOFS prototype fabricated using MEMS technology is detected. The optical beat signals su- perimposed by ± 1st-order and ±2nd-order diffracted beams are detected. The frequency shift of 78.2201 MHz related to the 1 st-order diffracted beams and 156.2306 MHz related to the 2nd-order diffracted beams are obtained respectively.

关 键 词：SAW RAMAN AOFS frequency shift 

分 类 号：TN65[电子电信—电路与系统]