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

Stabilization of electro-optic modulator bias voltage drift using a lock-in amplifier and a proportional-integral-derivative controller in a distributed Brillouin sensor system

Not Accessible

Your library or personal account may give you access

Abstract

In a distributed Brillouin sensor system, it is crucial to keep the pulse energy uniform for a constant signal-to-noise ratio. This means that the variable dc leakage (pulse base) for the electro-optic modulator (EOM) must be locked. We examine two different methods of locking the EOM bias voltage and look at the advantages and disadvantages of each locking method. It is found that the two locking methods, one based on a lock-in amplifier and the other using proportional-integral-derivative control, both have applications in which they excel at locking the pulse base.

© 2007 Optical Society of America

Full Article  |  PDF Article
More Like This
Distributed Brillouin sensor system based on offset locking of two distributed feedback lasers

Yun Li, Xiaoyi Bao, Fabien Ravet, and Evgueni Ponomarev
Appl. Opt. 47(2) 99-102 (2008)

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

Xiaonan Hui, Shilie Zheng, Jinhai Zhou, Chen Xu, Hao Chi, Xiaofeng Jin, and Xianmin Zhang
Appl. Opt. 52(35) 8581-8585 (2013)

Effect of the finite extinction ratio of an electro-optic modulator on the performance of distributed probe-pump Brillouin sensorsystems

Shahraam Afshar V., Graham A. Ferrier, Xiaoyi Bao, and Liang Chen
Opt. Lett. 28(16) 1418-1420 (2003)

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 (9)

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

Select as filters


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