基于LabVIEW的光纤线路光功率信号实时采集系统  

LabVIEW based real-time acquisition system for optical power signal in optical fiber

作　　者：林小娟[1] 曹战民[1] 尹涛[2] 陈安峰[1] 吴琦[1] 

机构地区：[1]西安应用光学研究所,陕西西安710065 [2]西安通信学院基础部,陕西西安710106

出　　处：《应用光学》2009年第6期1007-1011,共5页Journal of Applied Optics

摘　　要：为实时获取光纤内光功率信号,基于LabVIEW虚拟仪器编程语言,采用USB总线技术,结合光接收机和NI数据采集卡USB-M6251构成的硬件平台设计了新型的高速采集系统。该系统克服以往光功率信号采集系统采样率低、单通道显示、界面交互能力弱、便携性差等缺点,实现了采样参数可控的双通道实时采集、显示、保存光功率信号等功能。该系统开发效率高,并通过实验证明其具有良好的人机交互能力,可靠性高,实用性强,能为各类光纤通信系统提供光功率信号监测功能。In order to real-time get optical power signal transmitted in optical fiber,a new high-speed acquisition system is designed.Based on LabVIEW virtual instrument programming language and USB technique,the system combines an optical receiver with an USB DAQ card USB-M6251 of NI Company.It overcomes the disadvantages of the traditional system,such as low sampling rate,single channel display,insufficient man machine interface function and poor portability,and realizes the real-time acquisition,display and storage of optical-power signal in dual channels with sampling parameter controllable.Experiments prove that the optical power signal acquisition system is reliable and practical,and it provides a good man machine interface.It can be used to monitor the optical power signal in various optical fiber communication systems.

关 键 词：实时光功率信号采集 LABVIEW 光接收机 USB数采卡 

分 类 号：TN929.11[电子电信—通信与信息系统]