Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Electro-optic modulator feedback control in phase-sensitive optical time-domain reflectometer distributed sensor

Not Accessible

Your library or personal account may give you access

Abstract

We propose a novel method to control the electro-optic modulator (EOM) applied in the phase-sensitive optical time-domain reflectometer (ϕ-OTDR) distributed sensor system, which uses the data of the OTDR curves rather than applying an independent control module. We explain the relationship between the accumulation value of the OTDR curve and the EOM’s extinction ratio, and utilize this relationship to feedback control the EOM. The experimental results show that it can compensate the drift of the EOM, and make the modulator run with a high extinction ratio for a long time. And this method can also ratify a small jump of the EOM’s bias point.

© 2013 Optical Society of America

Full Article  |  PDF Article
More Like This
Influences of laser source on phase-sensitivity optical time-domain reflectometer-based distributed intrusion sensor

Xiang Zhong, Chunxi Zhang, Lijing Li, Sheng Liang, Qin Li, Qiying Lü, Xiuxin Ding, and Qiaoyuan Cao
Appl. Opt. 53(21) 4645-4650 (2014)

Space-frequency analysis with parallel computing in a phase-sensitive optical time-domain reflectometer distributed sensor

Xiaonan Hui, Taihang Ye, Shilie Zheng, Jinhai Zhou, Hao Chi, Xiaofeng Jin, and Xianmin Zhang
Appl. Opt. 53(28) 6586-6590 (2014)

Polarization discrimination in a phase-sensitive optical time-domain reflectometer intrusion-sensor system

Juan C. Juarez and Henry F. Taylor
Opt. Lett. 30(24) 3284-3286 (2005)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved