Abstract

We propose and demonstrate a novel distributed sensor based on coherent interaction of the Brillouin gain and loss via optical differential parametric amplification (ODPA), which provides narrowed parametric Brillouin gain spectrum, strong Brillouin signal via differential gain, and short measurement time simultaneously. In experiment, a 0.5 m spatial resolution with a strain accuracy of $6\ \mu \varepsilon$ is realized by using 20/15 ns Stokes and anti-Stokes pulse pair in a 15 m polarization-maintaining fiber. The spectrum narrowing phenomenon in ODPA Brillouin sensor is discussed.

© 2010 IEEE

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2010 (1)

H. Liang, W. Li, N. Linze, L. Chen, X. Bao, "High resolution DPP-BOTDA over 50 km LEAF fiber using RZ coded pulses," Opt. Lett. (2010) in press.

2009 (2)

A. Minardo, R. Bernini, L. Zeni, "A simple technique for reducing pump depletion in long-range distributed brillouin fiber sensors," IEEE Sensor Journal 9, 633-634 (2009).

Y. Dong, X. Bao, W. Li, "Differential Brillouin gain for improving the temperature accuracy and spatial resolution in a long-distance distributed fiber sensor," Appl. Opt 48, 4297-4301 (2009).

2008 (1)

2005 (1)

2002 (1)

2001 (1)

X. Bao, M. DeMerchant, A. Brown, T. Bremner, "Tensile and compressive strain measurement in the lab and field with the distributed Brillouin scattering sensor," IEEE J. Lightwave Technol 19, 1698-1704 (2001).

1999 (1)

1996 (1)

1993 (1)

1990 (1)

Appl. Opt (1)

Y. Dong, X. Bao, W. Li, "Differential Brillouin gain for improving the temperature accuracy and spatial resolution in a long-distance distributed fiber sensor," Appl. Opt 48, 4297-4301 (2009).

Appl. Opt. (1)

IEEE J. Lightwave Technol (1)

X. Bao, M. DeMerchant, A. Brown, T. Bremner, "Tensile and compressive strain measurement in the lab and field with the distributed Brillouin scattering sensor," IEEE J. Lightwave Technol 19, 1698-1704 (2001).

IEEE Sensor Journal (1)

A. Minardo, R. Bernini, L. Zeni, "A simple technique for reducing pump depletion in long-range distributed brillouin fiber sensors," IEEE Sensor Journal 9, 633-634 (2009).

Opt. Express (1)

Opt. Lett. (6)

Other (1)

R. W. Boyd, Nonlinear Optics (Academic Press, 2003).

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