Abstract

A distributed fiber strain and vibration sensor which effectively combines Brillouin optical time-domain reflectometry and polarization optical time-domain reflectometry is proposed. Two reference beams with orthogonal polarization states are, respectively, used to perform the measurement. By using the signal obtained from either reference beam, the vibration of fiber can be measured from the polarization effect. After combining the signals obtained by both reference beams, the strain can be measured from the Brillouin effect. In the experiment, 10 m spatial resolution, 0.6 kHz frequency measurement range, 2.5 Hz frequency resolution, and 0.2 MHz uncertainty of Brillouin frequency measurement are realized for a 4 km sensing distance.

© 2013 Optical Society of America

Full Article  |  PDF Article
Related Articles
Spatial-division multiplexed hybrid Raman and Brillouin optical time-domain reflectometry based on multi-core fiber

Zhiyong Zhao, Yunli Dang, Ming Tang, Li Duan, Meng Wang, Hao Wu, Songnian Fu, Weijun Tong, Perry Ping Shum, and Deming Liu
Opt. Express 24(22) 25111-25118 (2016)

Distributed measurement of dynamic strain based on multi-slope assisted fast BOTDA

Dexin Ba, Benzhang Wang, Dengwang Zhou, Mingjing Yin, Yongkang Dong, Hui Li, Zhiwei Lu, and Zhigang Fan
Opt. Express 24(9) 9781-9793 (2016)

Proposal of Brillouin optical correlation-domain reflectometry (BOCDR)

Yosuke Mizuno, Weiwen Zou, Zuyuan He, and Kazuo Hotate
Opt. Express 16(16) 12148-12153 (2008)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (4)

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

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

Equations (6)

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

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

Metrics

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

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