一种数字化可调光衰减器的设计  

A design for a digitalized variable optical attenuator

作　　者：曹钟慧[1] 邹勇卓[1] 吴兴坤[1] 

机构地区：[1]浙江大学现代光学仪器国家重点实验室,浙江大学光及电磁波研究中心,浙江杭州310027

出　　处：《光电工程》2004年第5期17-20,23,共5页Opto-Electronic Engineering

摘　　要：设计了一种具有自锁功能,可实现数字化的电磁驱动可调光衰减器。该衰减器以电磁驱动 微加工齿轮/齿条机构,带动偏心轮以及与偏心轮点接触的移动挡光片,从而实现数字化电控调节光衰减量。性能测试表明该器件的插入损耗小于 0.5 dB,衰减动态范围为0～50dB。A digitalized variable optical attenuator with self-locking function is designed. The attenuator drives a micro-machined gear/rack mechanism with electromagnetic energy to power the eccentric wheel and a moving optical baffling filter contacted with the eccentric wheel, thus variable optical attenuating amount with digitalized electric control can be performed. The performance test shows that the insertion loss of the unit is less than 0.5dB and its dynamic attenuating range is 0~50dB.

关 键 词：数字化电控可调光衰减器 微加工 微位移驱动器 光通信 

分 类 号：TN715[电子电信—电路与系统]