Abstract

The dependence of the Brillouin frequency shift on strain in a photonic crystal fiber (PCF) was measured at a wavelength of 1320 nm for the first time to the authors’ knowledge. Together with measurements of the dependence of the Brillouin frequency shift on temperature in the PCF, we demonstrate the feasibility of the highly precise simultaneous measurement of temperature and strain by use of the PCF in a distributed Brillouin sensing system with a spatial resolution of 15 cm.

© 2004 Optical Society of America

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References

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2004

2003

2002

2001

C. C. Lee, P. W. Chiang, and S. Chi, IEEE Photon. Technol. Lett. 13, 1094 (2001).
[CrossRef]

2000

1997

1994

Afshar V., S.

Alahbabi, M.

Bao, X.

Belardi, W.

Chen, L.

Chi, S.

C. C. Lee, P. W. Chiang, and S. Chi, IEEE Photon. Technol. Lett. 13, 1094 (2001).
[CrossRef]

Chiang, P. W.

C. C. Lee, P. W. Chiang, and S. Chi, IEEE Photon. Technol. Lett. 13, 1094 (2001).
[CrossRef]

Cho, Y. Y.

Farhadiroushan, M.

Ferrier, G. A.

Handerek, V. A.

Ibsen, M.

Jackson, D. A.

Jones, J. D. C.

J. D. C. Jones, in Optical Fiber Sensors, Vol. 16 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 36.

Kee, H. H.

Lee, C. C.

C. C. Lee, P. W. Chiang, and S. Chi, IEEE Photon. Technol. Lett. 13, 1094 (2001).
[CrossRef]

Lee, J. H.

Lees, G. P.

Monro, T. M.

Newson, T. P.

Parker, T. R.

Richardson, D. J.

Rogers, A. J.

Webb, D. J.

Yu, Q.

Yusoff, Z.

Zou, L.

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Figures (4)

Fig. 1
Fig. 1

Brillouin loss spectrum of a 2-m photonic crystal fiber with a partially Ge-doped core measured at 24 °C and in a loose state. Inset, near-field microscope picture of the PCF.

Fig. 2
Fig. 2

Central frequencies of peaks a and c as functions of temperature. vBTvB0 is given by either vBpkaTvBpka0 or vBpkcTvBpkc0.

Fig. 3
Fig. 3

Brillouin loss spectra of a PCF measured for different fiber elongations at room temperature (24 °C). The experimental data fit the Lorentzian functions very well.

Fig. 4
Fig. 4

Central frequencies of peaks a and c as functions of strain. vBvB0 is given by either vBpkavBpka0 or vBpkcvBpkc0.

Equations (4)

Equations on this page are rendered with MathJax. Learn more.

ΔvBpk1ΔvBpk2=Cpk1CTpk1Cpk2CTpk2ΔΔT,
Cpk1CTpk1Cpk2CTpk20,
ΔT=ΔvBpk2Cpk1-ΔvBpk1Cpk2Cpk1CTpk2-Cpk2CTpk1,
Δ=ΔvBpk1CTpk2-ΔvBpk2CTpk1Cpk1CTpk2-Cpk2CTpk1.

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