Abstract

The characterization of the Brillouin-loss spectrum of single-mode fibers with very short <10ns pulses has been studied. It was found that the Brillouin-loss signal intensity is linearly related to the duration of the pump pulse used to obtain the spectrum. In contrast with the uniform trend of the signal, three distinct behaviors were observed in the spectral linewidth. At long pulse durations the linewidth was constant at approximately 40  MHz. Pulse durations of the order of the phonon lifetime resulted in a broader spectrum, reaching a maximum width of 100 MHz at 5  ns. Reducing the pulse duration further resulted in a sudden narrowing of the Brillouin line.

© 1999 Optical Society of America

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References

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  1. T. Horiguchi, K. Shimizu, T. Kurashima, M. Tateda, and Y. Koyamada, J. Lightwave Technol. 13, 1296 (1995).
    [CrossRef]
  2. X. Bao, J. Dhliwayo, N. Heron, D. J. Webb, and D. A. Jackson, J. Lightwave Technol. 13, 1340 (1995).
    [CrossRef]
  3. A. Fellay, L. Thévenaz, M. Facchini, M. Niklès, and P. Robert, in Optical Fiber Sensors, Vol. 16 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 324.
  4. T. Horiguchi, K. Shimizu, T. Kurashima, and Y. Koyamada, Proc. SPIE 2507, 126 (1995).
    [CrossRef]
  5. A. Brown, M. DeMerchant, X. Bao, and T. Bremner, Proc. SPIE 3330, 294 (1998).
    [CrossRef]
  6. J. Schroeder, in Treatise on Materials Science and Technology, M. Tomozawa and R. H. Doremus, eds. (Academic, San Diego, Calif., 1977), Vol. 12, pp. 159–167.

1998 (1)

A. Brown, M. DeMerchant, X. Bao, and T. Bremner, Proc. SPIE 3330, 294 (1998).
[CrossRef]

1995 (3)

T. Horiguchi, K. Shimizu, T. Kurashima, M. Tateda, and Y. Koyamada, J. Lightwave Technol. 13, 1296 (1995).
[CrossRef]

X. Bao, J. Dhliwayo, N. Heron, D. J. Webb, and D. A. Jackson, J. Lightwave Technol. 13, 1340 (1995).
[CrossRef]

T. Horiguchi, K. Shimizu, T. Kurashima, and Y. Koyamada, Proc. SPIE 2507, 126 (1995).
[CrossRef]

Bao, X.

A. Brown, M. DeMerchant, X. Bao, and T. Bremner, Proc. SPIE 3330, 294 (1998).
[CrossRef]

X. Bao, J. Dhliwayo, N. Heron, D. J. Webb, and D. A. Jackson, J. Lightwave Technol. 13, 1340 (1995).
[CrossRef]

Bremner, T.

A. Brown, M. DeMerchant, X. Bao, and T. Bremner, Proc. SPIE 3330, 294 (1998).
[CrossRef]

Brown, A.

A. Brown, M. DeMerchant, X. Bao, and T. Bremner, Proc. SPIE 3330, 294 (1998).
[CrossRef]

DeMerchant, M.

A. Brown, M. DeMerchant, X. Bao, and T. Bremner, Proc. SPIE 3330, 294 (1998).
[CrossRef]

Dhliwayo, J.

X. Bao, J. Dhliwayo, N. Heron, D. J. Webb, and D. A. Jackson, J. Lightwave Technol. 13, 1340 (1995).
[CrossRef]

Facchini, M.

A. Fellay, L. Thévenaz, M. Facchini, M. Niklès, and P. Robert, in Optical Fiber Sensors, Vol. 16 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 324.

Fellay, A.

A. Fellay, L. Thévenaz, M. Facchini, M. Niklès, and P. Robert, in Optical Fiber Sensors, Vol. 16 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 324.

Heron, N.

X. Bao, J. Dhliwayo, N. Heron, D. J. Webb, and D. A. Jackson, J. Lightwave Technol. 13, 1340 (1995).
[CrossRef]

Horiguchi, T.

T. Horiguchi, K. Shimizu, T. Kurashima, M. Tateda, and Y. Koyamada, J. Lightwave Technol. 13, 1296 (1995).
[CrossRef]

T. Horiguchi, K. Shimizu, T. Kurashima, and Y. Koyamada, Proc. SPIE 2507, 126 (1995).
[CrossRef]

Jackson, D. A.

X. Bao, J. Dhliwayo, N. Heron, D. J. Webb, and D. A. Jackson, J. Lightwave Technol. 13, 1340 (1995).
[CrossRef]

Koyamada, Y.

T. Horiguchi, K. Shimizu, T. Kurashima, M. Tateda, and Y. Koyamada, J. Lightwave Technol. 13, 1296 (1995).
[CrossRef]

T. Horiguchi, K. Shimizu, T. Kurashima, and Y. Koyamada, Proc. SPIE 2507, 126 (1995).
[CrossRef]

Kurashima, T.

T. Horiguchi, K. Shimizu, T. Kurashima, and Y. Koyamada, Proc. SPIE 2507, 126 (1995).
[CrossRef]

T. Horiguchi, K. Shimizu, T. Kurashima, M. Tateda, and Y. Koyamada, J. Lightwave Technol. 13, 1296 (1995).
[CrossRef]

Niklès, M.

A. Fellay, L. Thévenaz, M. Facchini, M. Niklès, and P. Robert, in Optical Fiber Sensors, Vol. 16 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 324.

Robert, P.

A. Fellay, L. Thévenaz, M. Facchini, M. Niklès, and P. Robert, in Optical Fiber Sensors, Vol. 16 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 324.

Schroeder, J.

J. Schroeder, in Treatise on Materials Science and Technology, M. Tomozawa and R. H. Doremus, eds. (Academic, San Diego, Calif., 1977), Vol. 12, pp. 159–167.

Shimizu, K.

T. Horiguchi, K. Shimizu, T. Kurashima, and Y. Koyamada, Proc. SPIE 2507, 126 (1995).
[CrossRef]

T. Horiguchi, K. Shimizu, T. Kurashima, M. Tateda, and Y. Koyamada, J. Lightwave Technol. 13, 1296 (1995).
[CrossRef]

Tateda, M.

T. Horiguchi, K. Shimizu, T. Kurashima, M. Tateda, and Y. Koyamada, J. Lightwave Technol. 13, 1296 (1995).
[CrossRef]

Thévenaz, L.

A. Fellay, L. Thévenaz, M. Facchini, M. Niklès, and P. Robert, in Optical Fiber Sensors, Vol. 16 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 324.

Webb, D. J.

X. Bao, J. Dhliwayo, N. Heron, D. J. Webb, and D. A. Jackson, J. Lightwave Technol. 13, 1340 (1995).
[CrossRef]

J. Lightwave Technol. (2)

T. Horiguchi, K. Shimizu, T. Kurashima, M. Tateda, and Y. Koyamada, J. Lightwave Technol. 13, 1296 (1995).
[CrossRef]

X. Bao, J. Dhliwayo, N. Heron, D. J. Webb, and D. A. Jackson, J. Lightwave Technol. 13, 1340 (1995).
[CrossRef]

Proc. SPIE (2)

T. Horiguchi, K. Shimizu, T. Kurashima, and Y. Koyamada, Proc. SPIE 2507, 126 (1995).
[CrossRef]

A. Brown, M. DeMerchant, X. Bao, and T. Bremner, Proc. SPIE 3330, 294 (1998).
[CrossRef]

Other (2)

J. Schroeder, in Treatise on Materials Science and Technology, M. Tomozawa and R. H. Doremus, eds. (Academic, San Diego, Calif., 1977), Vol. 12, pp. 159–167.

A. Fellay, L. Thévenaz, M. Facchini, M. Niklès, and P. Robert, in Optical Fiber Sensors, Vol. 16 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), p. 324.

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Figures (5)

Fig. 1
Fig. 1

Sensor system configuration.

Fig. 2
Fig. 2

Brillouin linewidth as a function of pulse duration.

Fig. 3
Fig. 3

Peak Brillouin loss as a function of pulse duration. The point at 100  ns has reduced intensity because only 10  m of fiber was tested.

Fig. 4
Fig. 4

Brillouin spectra for pulse durations of 50, 9, and 3  ns.

Fig. 5
Fig. 5

Time-domain waveform for a 2-ns pulse at a beat frequency of 13 324  MHz. The inset is a magnified view of a 400-mm section of strained fiber. Note that the rise time of the back edge of the section is 2  ns, indicating that the Brillouin interaction is not limited by the photon lifetime.

Equations (6)

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fν=G{c11+4ν-νB2δν2+1-cexp[-4ln2ν-νB2δν2]}.
νB=2nλVS.
Lcphonon=VSδν6000 m/s40 MHz=0.15 mm.
L0=VSτ0.6 mm>Lcphonon.
L0=VSτ0.06 mm<Lcphonon.
L0=VSτ0.006 mmLcphonon.

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