pdf

Research on current sensing based on all-fiber Mach-Zehnder interferometer

  • 2013-09-18
  • 259.79KB
  • Points it Requires : 2

This paper studies a high-sensitivity current sensor based on an all-fiber Mach-Zehnder interferometer. One arm of the interferometer passes through a thin metal tube. A direct current is passed through the thin metal tube. The thermal effect of the current is used to tune the length difference of the two arms of the interferometer, thereby realizing a phase-modulated current sensor. In the experiment, the wavelength calibration method is used to eliminate environmental interference. When the direct current changes in the range of 0 to 1.8A, the movement of a specific wavelength in the interference spectrum is proportional to the electric power. The linear fit is 0.9987, the maximum wavelength movement is 32nm, and the tuning rate is 19.47nmöW. Keywords: Mach-Zehnder interferometer; current sensing; phase modulation; thermal effect

unfold

You Might Like

Uploader
jasionla
 

Recommended ContentMore

Popular Components

Just Take a LookMore

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

About Us Customer Service Contact Information Datasheet Sitemap LatestNews


Room 1530, 15th Floor, Building B, No.18 Zhongguancun Street, Haidian District, Beijing, Postal Code: 100190 China Telephone: 008610 8235 0740

Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号
×