Abstract

We report a fiber strain sensor based on a single fiber Bragg grating (FBG) with a minimum detectable strain of 280 femtostrain/√Hz in the 20-kHz range. This breakthrough was made possible by operating the FBG on one of its slow-light peaks, and utilizing a FBG with a particularly low loss, fabricated using ultrafast pulses, to maximize the sensitivity. A theoretical and experimental noise analysis shows that the sensor noise is limited by laser frequency noise and not fiber phase noise, which suggests that even greater performance can be expected with a more stable laser frequency. © 2012 Optical Society of America

© 2013 IEEE

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2012 (3)

H. Wen, M. Terrel, S. Fan, M. Digonnet, "Sensing with slow light in fiber Bragg gratings," IEEE Sensor J. 12, 156-163 (2012).

G. A. Cranch, S. Foster, "Comments on 'Probing the ultimate limit of fiber-optic strain sensing'," Sci. 335, 286 (2012).

G. Gagliardi, M. Salza, S. Avino, P. Ferraro, P. De Natale, "Response to comment on 'Probing the ultimate limit of fiber-optic strain sensing'," Scence 335, 286 (2012).

2010 (1)

G. Gagliardi, M. Salza, S. Avino, P. Ferraro, P. De Natale, "Probing the ultimate limit of fiber-optic strain sensing," Science 330, 1081-1084 (2010).

2009 (1)

M. Bernier, R. Vallée, B. Morasse, C. Desrosiers, A. Saliminia, Y. Sheng, "Ytterbium fiber laser based on first-order fiber Bragg gratings written with 400 nm femtosecond pulses and a phase-mask," Opt. Exp. 17, 18887-18893 (2009).

2008 (1)

D. Gatti, G. Galzerano, D. Janner, S. Longhi, P. Laporta, "Fiber strain sensor based on a π-phase shifted Bragg grating and the Pound-Drever-Hall technique," Opt. Exp. 16, 1945-1950 (2008).

2007 (1)

2005 (1)

1998 (1)

1997 (3)

T. Erdogan, "Fiber grating spectra," J. Lightw. Tech. 15, 1277-1294 (1997).

Y. Rao, "In-fibre Bragg grating sensors," Meas. Sci. Technol. 8, 355-375 (1997).

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, E. J. Friebele, "Fiber grating sensors," J. Lightw. Tech. 15, 1442-1463 (1997).

1992 (3)

K. H. Wanser, "Fundamental phase noise limit in optical fibre due to temperature fluctuations," Electron. Lett. 28, 53-54 (1992).

A. D. Kersey, T. A. Berkoff, W. W. Morey, "High resolution fibre-grating based strain sensor with interferometric wavelength-shift detection," Electron. Lett. 28, 136-138 (1992).

A. D. Kersey, T. A. Berkoff, W. W. Morey, "High resolution fibre-grating based strain sensor with interferometric wavelength-shift detection," Electron. Lett. 28, 136-138 (1992).

Appl. Opt. (1)

Electron. Lett. (3)

K. H. Wanser, "Fundamental phase noise limit in optical fibre due to temperature fluctuations," Electron. Lett. 28, 53-54 (1992).

A. D. Kersey, T. A. Berkoff, W. W. Morey, "High resolution fibre-grating based strain sensor with interferometric wavelength-shift detection," Electron. Lett. 28, 136-138 (1992).

A. D. Kersey, T. A. Berkoff, W. W. Morey, "High resolution fibre-grating based strain sensor with interferometric wavelength-shift detection," Electron. Lett. 28, 136-138 (1992).

IEEE Sensor J. (1)

H. Wen, M. Terrel, S. Fan, M. Digonnet, "Sensing with slow light in fiber Bragg gratings," IEEE Sensor J. 12, 156-163 (2012).

J. Lightw. Tech. (2)

T. Erdogan, "Fiber grating spectra," J. Lightw. Tech. 15, 1277-1294 (1997).

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, E. J. Friebele, "Fiber grating sensors," J. Lightw. Tech. 15, 1442-1463 (1997).

Meas. Sci. Technol. (1)

Y. Rao, "In-fibre Bragg grating sensors," Meas. Sci. Technol. 8, 355-375 (1997).

Opt. Exp. (2)

M. Bernier, R. Vallée, B. Morasse, C. Desrosiers, A. Saliminia, Y. Sheng, "Ytterbium fiber laser based on first-order fiber Bragg gratings written with 400 nm femtosecond pulses and a phase-mask," Opt. Exp. 17, 18887-18893 (2009).

D. Gatti, G. Galzerano, D. Janner, S. Longhi, P. Laporta, "Fiber strain sensor based on a π-phase shifted Bragg grating and the Pound-Drever-Hall technique," Opt. Exp. 16, 1945-1950 (2008).

Opt. Lett. (2)

Scence (1)

G. Gagliardi, M. Salza, S. Avino, P. Ferraro, P. De Natale, "Response to comment on 'Probing the ultimate limit of fiber-optic strain sensing'," Scence 335, 286 (2012).

Sci. (1)

G. A. Cranch, S. Foster, "Comments on 'Probing the ultimate limit of fiber-optic strain sensing'," Sci. 335, 286 (2012).

Science (1)

G. Gagliardi, M. Salza, S. Avino, P. Ferraro, P. De Natale, "Probing the ultimate limit of fiber-optic strain sensing," Science 330, 1081-1084 (2010).

Other (1)

M. Digonnet, H. Wen, M. Terrel, S. Fan, "Slow light in fiber sensors," Proc. SPIE (2012) pp. 82730W1-11.

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