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A compact optical cross-connect system using piezo-electric micro actuators.

使用压电微型执行器的紧凑型光学交叉连接系统。

基本信息

批准号：
13450105
负责人：
OOHIRA Fumikazu
金额：
$ 8.83万
依托单位：
Kagawa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13450105/
关键词：
Optical communications system Optical cross connect system Micro actuator Micro machine Optical switch Coupling loss Micro mirror Array fiber マクロミラー

项目摘要

This research aims to realize a compact optical cross-connect system for future high-speed optical communication network system.The results are summarized as follows.1.System concept : A high-density packaging system concept was proposed based on a free-space and non-matrix type compositions using 2 dimensional array fibers, and the system was constructed.2.Actuationmethod : Anewactuationmethodsusingultrasonicmotorsbasedonpiezo-electricactuatorsareproposed, which have features such as self-hold, low power consumption, and good controllability. Base on the technology, 2 switching constructions are examined, one is lens actuation method, and the other is reflection mirror actuation method.3. Fabrication and Evaluation: The mechanical and optical design and simulation are done for the 2 methods, and the proto-type models are fabricated. In the lens actuation method, 2 x 2 switching system was constructed using a SELFOC lens. The optimum parameters are examined to maximize the coupling efficiency. As the results, it was confirmed that the optical coupling was possible by actuating the lens about 1 micron accuracy, and a few dB efficiency was confirmed. In the mirror actuation method, array mirrors are fabricated by the photo-lithographic technologies, and mirror rotation was confirmed experimentally using permanent magnets. The mirror rotating angle accuracy was within 0.1 degrees. Based on the results, the 2 x 2 switching system was constructed and evaluated. The results showed good optical characteristics and good repeatability of the switches.As described above, a basic technologies based on the piezo-electric actuators are achieved.

本研究旨在为未来高速光通信网络系统实现一种紧凑型光交叉连接系统。主要研究成果如下：1.系统概念：提出了一种基于自由空间和非矩阵两维阵列光纤组成的高密度封装系统概念，并构建了系统。2.驱动方法：Anewactuationmethodsusingultrasonicmotorsbasedonpiezo-electricactuatorsareproposed，具有自保持、低功耗、可控性好等特点。在此基础上，研究了透镜驱动法和反射镜驱动法两种开关结构。制作与评价：对两种方法进行了机械、光学设计和仿真，并制作了样机模型。在透镜驱动方法中，使用SELFOC透镜构建了2×2开关系统。研究了使耦合效率最大化的最佳参数。结果表明，通过驱动透镜的精度约为1微米，光耦合是可能的，并证实了几个分贝的效率。在反射镜驱动方法中，利用光刻技术制作了阵列反射镜，并利用永磁体通过实验证实了反射镜的旋转。反射镜转角精度在0.1度以内。在此基础上，构建了2×2开关系统，并对其进行了评价。结果表明，该开关具有良好的光学特性和良好的重复性。如上所述，实现了基于压电式致动器的基本工艺。