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

• Optical Communication • Previous Articles     Next Articles

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

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

CLC Number: