Abstract

.We measured the hydrostatic pressure dependence of the birefringence and birefringent dispersion of a Sagnac interferometric sensor incorporating a length of highly birefringent photonic crystal fiber using Fourier analysis. Sensitivity of both the phase and chirp spectra to hydrostatic pressure is demonstrated. Using this analysis, phase-based measurements showed a good linearity with an effective sensitivity of 9.45nm/MPa and an accuracy of ±7.8kPa using wavelength-encoded data and an effective sensitivity of 55.7cm1/MPa and an accuracy of ±4.4kPa using wavenumber-encoded data. Chirp-based measurements, though nonlinear in response, showed an improvement in accuracy at certain pressure ranges with an accuracy of ±5.5kPa for the full range of measured pressures using wavelength-encoded data and dropping to within ±2.5kPa in the range of 0.17 to 0.4MPa using wavenumber-encoded data. Improvements of the accuracy demonstrated the usefulness of implementing chirp-based analysis for sensing purposes.

© 2010 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Pressure sensor realized with polarization-maintaining photonic crystal fiber-based Sagnac interferometer

H. Y. Fu, H. Y. Tam, Li-Yang Shao, Xinyong Dong, P. K. A. Wai, C. Lu, and Sunil K. Khijwania
Appl. Opt. 47(15) 2835-2839 (2008)

Temperature-compensated distributed hydrostatic pressure sensor with a thin-diameter polarization-maintaining photonic crystal fiber based on Brillouin dynamic gratings

Lei Teng, Hongying Zhang, Yongkang Dong, Dengwang Zhou, Taofei Jiang, Wei Gao, Zhiwei Lu, Liang Chen, and Xiaoyi Bao
Opt. Lett. 41(18) 4413-4416 (2016)

Distributed measurement of hydrostatic pressure based on Brillouin dynamic grating in polarization maintaining fibers

Yong Hyun Kim, Hong Kwon, Jeongjun Kim, and Kwang Yong Song
Opt. Express 24(19) 21399-21406 (2016)

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 (10)

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 (10)

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