摘要
设计研制了一种新型小体积,低成本的光纤直接耦合微加工型可调光衰减器.该器件采用电磁微线圈驱动柔性框架上的活动光纤微位移实现信号功率衰减变化,驱动电压为0～8 V,工作范围0～65 dB,动态时间响应小于2.3 ms.器件构造工艺主要使用了CNC高精度雕刻和激光点焊封装技术.利用有限元单元法进行器件理论分析,并报告了其测试性能.
A design of micromachining based direct-coupled variable optical attenuator (VOA) is presented. The device operates by misaligning a fiber-to-fiber coupling through a lateral displacement of one of the fibers mounted on a micro-machined flexure driven electromagnetically. The VOA was fabricated using CNC engraving and laser spot welding technologies and features a fast dynamic response ( less than or equal 2.3 ms), great dynamic range (0~65 dB) and wide bandwidth. In order to optimize micro-mechanical structure an FET software package ANSYS was employed and simulation of the device operation is reported in details.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2005年第5期718-721,共4页
Acta Photonica Sinica
关键词
光衰减器
光纤直接耦合
光纤通信
Varibable optical attenuator (VOA)
Direct couple
Fiber-optic communications
