光纤直接耦合微加工型1×2光开关  

1×2 Micromachining Based Direct-coupled Fiber Optical Switch

作　　者：晏辉鸣[1] 万鹏[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

出　　处：《光子学报》2004年第5期536-539,共4页Acta Photonica Sinica

摘　　要：设计研制了一种新型小体积 ,低成本的 1× 2光纤直接耦合微加工型光开关 该器件使用电磁微线圈驱动一封装在微加工柔性框架上的活动光纤 ,使其对准另两根固定光纤 ,实现光路转换 驱动电压为 5V ,开关时间小于 2ms ,插入损耗达到 0 .9～ 1 .1dB 器件构造工艺采用了CNC雕刻技术和EDM技术 本文剖析了器件损耗 ,用有限元软件ANSYS分析了器件的磁场和弹簧受力而优化结构设计 。A design of micromachining based 1×2 direct coupled fiber switch is reported. CNC engraving and EDM techniques were used to fabricate a switch sample where a movable fiber mounted on a micro machined flexure is driven electromagnetically, and output light beam is directly coupled to two other fiber end surfaces; the switch features a low driven voltage(5 V), fast switch(<2 ms) and low insertion loss(0.9～1.1 dB). In the course of design a FET software package ANSYS was used to analyze the distribution of magnetic field in the switch and associated force exerted on flexure to optimize the switch configuration. An experimental result including switch response time, back reflection and insertion loss was presented.

关 键 词：光开关 光纤直接耦合 光纤通信 

分 类 号：TN253[电子电信—物理电子学]