| 光纤直接耦合微加工型可调光衰减器 |
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| 引用本文： | 晏辉鸣,曹钟慧,吴兴坤.光纤直接耦合微加工型可调光衰减器[J].光子学报,2005,34(5):718-721. |
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| 作者姓名： | 晏辉鸣 曹钟慧 吴兴坤 |
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| 作者单位： | 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,杭州,310027;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,杭州,310027;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,杭州,310027 |
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| 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.
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| 关 键 词： | 光衰减器 光纤直接耦合 光纤通信 |
| 收稿时间： | 2004-03-15 |
| 修稿时间： | 2004年3月15日 |
Micromachining Based Direct-Coupled Variable Optical Attenuator |
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| Yan Huiming,Cao Zhonghui,Wu Xingkun.Micromachining Based Direct-Coupled Variable Optical Attenuator[J].Acta Photonica Sinica,2005,34(5):718-721. |
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| Authors: | Yan Huiming Cao Zhonghui Wu Xingkun |
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| Institution: | (State Key Laboratory of Modern Optical Instrumentation,Center of Optical and Electromagnetic Research, Department of Optical Engineering Zhejiang University, Hangzhou 310027) |
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| Abstract: | 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 (<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. |
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| Keywords: | Varibable optical attenuator (VOA) Direct couple Fiber-optic communications |
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