基于扫描反射镜结构的多路光开关 -

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基于扫描反射镜结构的多路光开关

doi:10.37188/CO.2022-0020

长春理工大学光电工程学院, 吉林长春 130022

基金项目:国家自然科学基金项目（No. 62027825）；国家重点研发计划项目（No. 2020YFC2004600）；吉林省自然科学基金（No. 20220101130JC）；山东省自然科学基金（No. ZR2019MC069）；高等学校学科创新引智计划（111计划No. D21009）

详细信息

作者简介:
肖泽华（1997—），男，甘肃白银人，长春理工大学硕士研究生，2019年于长春理工大学光电工程学院获得学士学位，主要研究方向为微纳光学与光子学器件。E-mail：xzhcusted@163.com
李明宇（1978—），男，吉林长春人，博士，教授，2006年于浙江大学光电信息工程学院获得博士学位，2006年至2008年于浙江大学光电工程学系做师资博士后，2009年于瑞典皇家工学院电子与应用物理工程学系做博士后，主要研究方向为集成光学。E-mail：limingyu@cust.edu.cn

通讯作者:
李明宇，通讯地址：limingyu@cust.edu.cn

中图分类号:TH744
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出版历程
- 收稿日期:2022-01-23
- 修回日期:2022-02-17
- 网络出版日期:2022-05-16

Multi-channel optical switching based on scanning mirror instrumentation

School of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, China

Funds:Supported by the National Natural Science Foundation of China (No. 62027825); the National Key R&D Program of China (No. 2020YFC2004600); Natural Science Foundation of Jilin Province (No. 20220101130JC); Natural Science Foundation of Shandong Province (No. ZR2019MC069); the 111 Project of China (No. D21009)

More Information

Corresponding author:limingyu@cust.edu.cn

摘要

摘要:
本文设计了一种使用嵌入式Linux可编程控制的基于扫描反射镜的光开关，在触摸显示器的UI界面上进行光纤阵列通道间的具体切换操作。此外，还可以预先设定光开关的切换顺序、停留时间。光开关光路可自动对光校准来保证每个通道的输出功率最大。本文分析了此种光开关的设计原理，通过实验测试了光开关的性能。实验结果表明：当使用单模光纤阵列时，平均插入损耗小于17 dB，相邻通道间的平均串扰低于30 dB，相邻通道间切换时间小于1.3 ms；对于多模光纤阵列，平均插入损耗小于2.4 dB。本文所设计的光开关具有低损耗、低延时、高精度、高稳定性、高重复性、通道间串扰小、人机交互良好等优点，可用于波分复用器件、多路光波导传感器等光学器件的测试。
- 光开关/
- 光纤阵列/
- 嵌入式linux编程/
- 自动校准
Abstract:
An optical switch based on a scanning mirror was designed in this paper. The optical switch is programmable and controlled by an embedded Linux system that switches between the fiber array channels on the UI of the touch display. Meanwhile, the switching sequence and residence time of the optical switch can be preset. In addition, the optical switch can be self-calibrated to obtain the maximum output power of each channel. The principle of the optical switch is analyzed and the performance of the optical switch is tested experimentally. The experimental results show that the average insertion loss is less than 17 dB for the single mode fiber array, the average crosstalk between adjacent channels is more than 30 dB, and the switching time between the adjacent channel is less than 1.3 ms. The average insertion loss is less than 2.4 dB for the multi-mode fiber array. It has the advantages of low loss, low delay, high precision, good stability, high repeatability,low cross-talk between the adjacent channel, and good man-machine interaction for the application of theWavelength Division Multiplexing (WDM) and multi-channel optical waveguide sensors test device.
- optical switch/
- optical fiber array/
- embedded linux programming/
- self-calibration

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图 1光路图示意图

Figure 1.Schematic diagram of the optical path

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图 2硬件结构图

Figure 2.Hardware structure diagram

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图 3PD探测器及其运算放大电路的响应曲线图

Figure 3.Response curves of the PD detector and its amp circuit

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图 4PD探测模块通信方式

Figure 4.Communication mode of PD detection module

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图 5扫描反射镜模块通信方式

Figure 5.Module communication mode of scanning mirror

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图 6多路光开关应用程序

Figure 6.Multichannel light switch application

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图 7实际系统结构图

Figure 7.Actual system structure

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图 8WDM光谱曲线图

Figure 8.WDM spectrum curves

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图 9光路切换时间图

Figure 9.Optical path switching time diagram

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表 1单模光纤阵列各通道功率及损耗

Table 1.Powers and losses of each channel of the single-mode fiber array

通道数	功率（dBm）	损耗（dB）
1	−10.81	16.90
2	−10.86	16.77
3	−10.72	16.81
4	−10.69	16.68
5	−10.54	16.63
6	−10.48	16.57
7	−10.37	16.46
8	−10.43	16.52
9	−10.51	16.60
10	−10.63	16.72
11	−10.69	16.78
12	−10.73	16.62
13	−10.79	16.89

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表 2多模光纤阵列各通道的功率及损耗

Table 2.Powers and losses of each channel of the multimode fiber array

通道数	功率（dBm）	损耗（dB）
1	3.76	2.33
2	3.73	2.36
3	3.69	2.40
4	3.77	2.32
5	3.76	2.33
6	3.82	2.27
7	3.87	2.22
8	3.86	2.23
9	3.83	2.26
10	3.80	2.29
11	3.78	2.31
12	3.77	2.32
13	3.72	2.37

下载: 导出CSV

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