Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

All Fiber Attenuator Based on Polarization Extinction

HU Zheng-liang,HU Yong-ming,ZHAO Ming-hui(College of Optoelectronic Science and Engineering,National University of Defense Technology,Changsha 410073,CHN)  
A continually variable all fiber attenuator based on the principle of polarization extinction is presented.The attenuation principle of attenuator is analyzed by the method of Jones matrix,and the effect of extinction ratio of polarization-maintaining(PM) fiber polarizer on dynamic range is simulated.The experiment results demonstrate that with the attenuator consisting of two fiber polarizers with the extinction ratio of 30dB and servo motor with angle resolution of 5000 step/rotation,the dynamic range of 27dB,resolution of 0.126% and insertion loss of 0.5dB are obtained.This attenuator is characterized by simple structure,good reliability and stability,and doesn't change characteristics of transmission light.The attenuator has been used in temporal pulse shaping system of ICF.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved