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| 分布反馈激光器驱动与波长扫描模块设计 | |
| 引用本文： | 赵志,傅永军,董大明,郑文刚,张馨,邢振,单飞飞.分布反馈激光器驱动与波长扫描模块设计[J].仪表技术与传感器,2011(9). |
| 作者姓名： | 赵志 傅永军 董大明 郑文刚 张馨 邢振 单飞飞 |
| 作者单位： | 1. 北京交通大学光波技术研究所,北京100044;国家农业信息化工程技术研究中心,北京100097 2. 北京交通大学光波技术研究所,北京,100044 3. 国家农业信息化工程技术研究中心,北京,100097 |
| 基金项目： | 北京市科技计划重大项目 |
| 摘 要： | 分布反馈(DFB)激光器被广泛用于气体、水质的开放光程监测,其驱动的稳定性和波长扫描的精确性是影响监测系统性能的主要因素.为提高监测系统性能,通过分析分布反馈激光器的工作原理,研究高稳定驱动和高精度波长扫描方法,设计了驱动和波长扫描电路.以5 Hz的锯齿波作为扫描信号,以5 kHz的正弦波作为调制信号,用叠加的信号作为驱动芯片MAX3669的输入信号,获得了良好的实验效果.实验的成功,为提高整个开放光程气体监测系统的精度奠定了基础. |
| 关 键 词： | 分布反馈激光器 驱动 波长扫描 调制电流 |
Design of Distributed Feedback Lasers Driving and Wavelength Scanning Module |
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| ZHAOZhi,FU Yong-jun,DONG Da-ming,ZHENG Wen-gang,ZHANG Xin,XING Zhen,SHAN Fei-fei.Design of Distributed Feedback Lasers Driving and Wavelength Scanning Module[J].Instrument Technique and Sensor,2011(9). | |
| Authors: | ZHAOZhi FU Yong-jun DONG Da-ming ZHENG Wen-gang ZHANG Xin XING Zhen SHAN Fei-fei |
| Affiliation: | ZHAO Zhi1,2,FU Yong-jun1,DONG Daming2,ZHENG Wen-gang2,ZHANG Xin2,XING Zhen2,SHAN Fei-fei2 (1.Institute of Lightwave Technology,Beijing Jiaotong University,Beijing 100044,China,2.National Engineering Research Center for Information Technology in Agriculture,Beijing 100097,China) |
| Abstract: | The distributed feedback laser is widely used in gas and water open-path detection,and the driving stability and the wavelength scanning accuracy are main influencing factors of the monitoring system.For improving the monitoring system performance,this paper analyzed the working principle of distributed feedback lasers and researched high stability driving and high precision wavelength scanning,and then designed the driving and wavelength scanning circuit.The saw-tooth wave with 5 Hz frequency is used as sc... |
| Keywords: | distributed feedback lasers driver wavelength scanning modulating current |
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