J4 ›› 2009, Vol. 26 ›› Issue (3): 371-375.

• 光通信 • 上一篇    下一篇

LabVIEW在零差相干光检测系统的应用

陈少华 黄春晖   

  1. 福州大学物理与信息工程学院,福州 350002
  • 收稿日期:2008-07-30 修回日期:2008-12-12 出版日期:2009-05-28 发布日期:2009-05-07
  • 通讯作者: 黄春晖,男,复旦大学博士,研究生导师,教授;研究方向:电子信息应用 E-mail:hchfzu@ 163.com
  • 作者简介:陈少华,男,1984年生,硕士生,研究方向:电路与系统。windowfreind9@163.com
  • 基金资助:

    福建省教育厅重点科技项目(JA08001)

Application of LabVIEW in homodyne coherent light detection system

CHEN Shao-Hua, HUANG Chun-Hui   

  1. College of Physics and Information Engineering,Fuzhou University,Fuzhou 350002, China
  • Received:2008-07-30 Revised:2008-12-12 Published:2009-05-28 Online:2009-05-07

摘要:

基于相干光通信原理设计一套实验装置以搭建零差相干光检测平台,选择国家仪器生产的高性能数据采集卡PCI6111E,利用LabVIEW虚拟仪器环境,在两台计算机上分别设计发送端和接收端控制软件,验证同步检测,最后进行数据采集和处理并显示测量波形。实验表明,采用光同步方案结合LabVIEW软件控制,解决了发送端的声光调制器、电光调制器、接收端的数据采集和基于压电陶瓷的相位调节器之间的同步过程,实现了相干光信息的发送调制和实时接收解调。

关键词: 光通信, 零差, 相干光检测, 同步控制, LabVIEW, 数据采集

Abstract:

Based on coherent optical communication theory, a suit of experimental apparatus were designed to build a homodyne coherent optical detection system platform.The system select PCI6111E from National Instruments corporation as a data acquisition module for its high performance. The sender and receiver control software on different computers were designed under virtual instrument environment LabVIEW.Test the synchronous detection on the platform.At last, data acquisition and processing and display the waveform measured.Experimental results show that by use of light-synchronization and LabVIEW software control, acousto-optic modulator,electro-optical modulator of sender, data acquisition of receiver and phase regulator based on piezoelectric ceramic can work together in cooperation,the system achieves coherent optical information modulation on sender and real-time demodulation on receiver.

Key words: optical communication, homodyne, coherent light detection, synchronous control, LabVIEW, data acquisition

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