Abstract

We report the first experimental demonstration of pulse advancement with gain in optical fibers based on stimulated Brillouin scattering. Two experimental configurations are investigated and compared. One is to make the pulse propagate in a region slightly detuned from a gain peak where the group velocity change is negative and the other is to make use of the large anomalous dispersion appearing between two gain peaks. We experimentally show that the second method produces pulse advancement with lower distortion than the first one.

© 2005 Optical Society of America

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  1. R. W. Boyd and D. J. Gauthier , “ ‘Slow’ and ‘Fast’ Light ,” Ch. 6 in Progress in Optics 43 , E. Wolf , Ed. ( Elsevier, Amsterdam , 2002 ), 497 – 530 .
  2. L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 metres per second in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
    [Crossref]
  3. C. Liu , Z. Dutton , C. H. Behroozi , and L. V. Hau . “ Observation of coherent optical information storage in an atomic medium using halted light pulses ,” Nature   409 , 490 – 493 ( 2001 ).
    [Crossref] [PubMed]
  4. L. J. Wang , A. Kuzmich , and A. Dogariu , “ Gain-assisted superluminal light propagation ,” Nature   406 , 277 – 279 ( 2000 ).
    [Crossref] [PubMed]
  5. M. D. Stenner , D. J. Gauthier , and M. A. Neifeld , “ The speed of information in a ‘fast-light’ optical medium ,” Nature   425 , 695 – 698 ( 2003 ).
    [Crossref] [PubMed]
  6. A. M. Akulshin , Barreiro S. , and A. Lezema “ Steep anomalous dispersion in a coherently prepared Rb vapor ,” Phys. Rev. Lett.   83 , 4277 ( 1999 ).
    [Crossref]
  7. M. S. Bigelow , N. N. Lepeshkin , and R. W. Boyd , “ Superluminal and Slow-light propagation in a room-temperature solid ,” Science   301 , 200 – 202 ( 2003 ).
    [Crossref] [PubMed]
  8. K. Y. Song , M. G. Herráez , and L. Thévenaz , “ Observation of pulse delaying and advancement in optical fibers using stimulated Brillouin scattering ,” Opt. Express   13 , 82 – 88 ( 2005 ), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-1-82 .
    [Crossref] [PubMed]
  9. K. Y. Song , M. G. Herráez , and L. Thévenaz , “ Long optically controlled delays in optical fibers ,” Opt. Lett.   30 , 1782 – 1784 ( 2005 ).
    [Crossref] [PubMed]
  10. Y. Okawachi , M. S. Bigelow , J. E. Sharping , Z. M. Zhu , A. Schweinsberg , D. J. Gauthier , R. W. Boyd , and A. L. Gaeta , “ Tunable all-optical delays via Brillouin slow light in an optical fiber ,” Phys. Rev. Lett.   94 , 153902 ( 2005 ).
    [Crossref] [PubMed]
  11. M. G. Herráez , K. Y. Song , and L. Thévenaz , “ Optically controlled slow and fast light in optical fibers using stimulated Brillouin scattering ,” Appl. Phys. Lett.   87 , 081113 ( 2005 ).
    [Crossref]
  12. J. E. Sharping , Y. Okawachi , and Alexander L. Gaeta , “ Wide bandwidth slow light using a Raman fiber amplifier ,” Opt. Express   13 , 6092 – 6098 ( 2005 ), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-16-6092 .
    [Crossref] [PubMed]
  13. D. Dahan and G. Eisenstein , “ Tunable all optical delay via slow and fast light propagation in a Raman assisted fiber optical parametric amplifier: a route to all optical buffering ,” Opt. Express   13 , 6234 – 6249 ( 2005 ), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-16-6234 .
    [Crossref] [PubMed]
  14. E. L. Bolda , J. C. Garrison , and R. Y. Chiao , “ Optical pulse propagation at negative group velocities due to a nearby gain ,” Phys. Rev. A   49 , 2938 – 2947 ( 1994 ).
    [Crossref] [PubMed]
  15. M. Niklès , L. Thévenaz , and P. Robert , “ Brillouin gain spectrum characterization in single-mode optical fibers ,” J. Lightwave Technol. ,   LT-15 , 1842 – 1851 ( 1997 ).
    [Crossref]
  16. S. E. Harris , J. E. Field , and A. Kasapi , “ Dispersive properties of electromagnetically induced transparency ,” Phys. Rev. A   46 , 29 ( 1992 ).
    [Crossref]
  17. R. W. Boyd , D. J. Gauthier , A. L. Gaeta , and A. E. Willner , “ Maximum time delay achievable on propagation through a slow-light medium ,” Phys. Rev. A   71 , 023801 ( 2005 ).
    [Crossref]
  18. Z. Zhu , D. J. Gauthier , Y. Okawachi , J. E. Sharping , A. L. Gaeta , R. W. Boyd , and A. E. Willer , “ Numerical study of all-optical slow-light delays via stimulated Brillouin scattering in an optical fiber ,” J. Opt. Soc. Am. B ,   22 , 2378 – 2384 ( 2005 ).
    [Crossref]

2005 (8)

K. Y. Song , M. G. Herráez , and L. Thévenaz , “ Observation of pulse delaying and advancement in optical fibers using stimulated Brillouin scattering ,” Opt. Express   13 , 82 – 88 ( 2005 ), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-1-82 .
[Crossref] [PubMed]

K. Y. Song , M. G. Herráez , and L. Thévenaz , “ Long optically controlled delays in optical fibers ,” Opt. Lett.   30 , 1782 – 1784 ( 2005 ).
[Crossref] [PubMed]

Y. Okawachi , M. S. Bigelow , J. E. Sharping , Z. M. Zhu , A. Schweinsberg , D. J. Gauthier , R. W. Boyd , and A. L. Gaeta , “ Tunable all-optical delays via Brillouin slow light in an optical fiber ,” Phys. Rev. Lett.   94 , 153902 ( 2005 ).
[Crossref] [PubMed]

M. G. Herráez , K. Y. Song , and L. Thévenaz , “ Optically controlled slow and fast light in optical fibers using stimulated Brillouin scattering ,” Appl. Phys. Lett.   87 , 081113 ( 2005 ).
[Crossref]

J. E. Sharping , Y. Okawachi , and Alexander L. Gaeta , “ Wide bandwidth slow light using a Raman fiber amplifier ,” Opt. Express   13 , 6092 – 6098 ( 2005 ), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-16-6092 .
[Crossref] [PubMed]

D. Dahan and G. Eisenstein , “ Tunable all optical delay via slow and fast light propagation in a Raman assisted fiber optical parametric amplifier: a route to all optical buffering ,” Opt. Express   13 , 6234 – 6249 ( 2005 ), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-16-6234 .
[Crossref] [PubMed]

R. W. Boyd , D. J. Gauthier , A. L. Gaeta , and A. E. Willner , “ Maximum time delay achievable on propagation through a slow-light medium ,” Phys. Rev. A   71 , 023801 ( 2005 ).
[Crossref]

Z. Zhu , D. J. Gauthier , Y. Okawachi , J. E. Sharping , A. L. Gaeta , R. W. Boyd , and A. E. Willer , “ Numerical study of all-optical slow-light delays via stimulated Brillouin scattering in an optical fiber ,” J. Opt. Soc. Am. B ,   22 , 2378 – 2384 ( 2005 ).
[Crossref]

2003 (2)

M. S. Bigelow , N. N. Lepeshkin , and R. W. Boyd , “ Superluminal and Slow-light propagation in a room-temperature solid ,” Science   301 , 200 – 202 ( 2003 ).
[Crossref] [PubMed]

M. D. Stenner , D. J. Gauthier , and M. A. Neifeld , “ The speed of information in a ‘fast-light’ optical medium ,” Nature   425 , 695 – 698 ( 2003 ).
[Crossref] [PubMed]

2001 (1)

C. Liu , Z. Dutton , C. H. Behroozi , and L. V. Hau . “ Observation of coherent optical information storage in an atomic medium using halted light pulses ,” Nature   409 , 490 – 493 ( 2001 ).
[Crossref] [PubMed]

2000 (1)

L. J. Wang , A. Kuzmich , and A. Dogariu , “ Gain-assisted superluminal light propagation ,” Nature   406 , 277 – 279 ( 2000 ).
[Crossref] [PubMed]

1999 (2)

A. M. Akulshin , Barreiro S. , and A. Lezema “ Steep anomalous dispersion in a coherently prepared Rb vapor ,” Phys. Rev. Lett.   83 , 4277 ( 1999 ).
[Crossref]

L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 metres per second in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
[Crossref]

1997 (1)

M. Niklès , L. Thévenaz , and P. Robert , “ Brillouin gain spectrum characterization in single-mode optical fibers ,” J. Lightwave Technol. ,   LT-15 , 1842 – 1851 ( 1997 ).
[Crossref]

1994 (1)

E. L. Bolda , J. C. Garrison , and R. Y. Chiao , “ Optical pulse propagation at negative group velocities due to a nearby gain ,” Phys. Rev. A   49 , 2938 – 2947 ( 1994 ).
[Crossref] [PubMed]

1992 (1)

S. E. Harris , J. E. Field , and A. Kasapi , “ Dispersive properties of electromagnetically induced transparency ,” Phys. Rev. A   46 , 29 ( 1992 ).
[Crossref]

Akulshin, A. M.

A. M. Akulshin , Barreiro S. , and A. Lezema “ Steep anomalous dispersion in a coherently prepared Rb vapor ,” Phys. Rev. Lett.   83 , 4277 ( 1999 ).
[Crossref]

Behroozi, C. H.

C. Liu , Z. Dutton , C. H. Behroozi , and L. V. Hau . “ Observation of coherent optical information storage in an atomic medium using halted light pulses ,” Nature   409 , 490 – 493 ( 2001 ).
[Crossref] [PubMed]

L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 metres per second in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
[Crossref]

Bigelow, M. S.

Y. Okawachi , M. S. Bigelow , J. E. Sharping , Z. M. Zhu , A. Schweinsberg , D. J. Gauthier , R. W. Boyd , and A. L. Gaeta , “ Tunable all-optical delays via Brillouin slow light in an optical fiber ,” Phys. Rev. Lett.   94 , 153902 ( 2005 ).
[Crossref] [PubMed]

M. S. Bigelow , N. N. Lepeshkin , and R. W. Boyd , “ Superluminal and Slow-light propagation in a room-temperature solid ,” Science   301 , 200 – 202 ( 2003 ).
[Crossref] [PubMed]

Bolda, E. L.

E. L. Bolda , J. C. Garrison , and R. Y. Chiao , “ Optical pulse propagation at negative group velocities due to a nearby gain ,” Phys. Rev. A   49 , 2938 – 2947 ( 1994 ).
[Crossref] [PubMed]

Boyd, R. W.

Y. Okawachi , M. S. Bigelow , J. E. Sharping , Z. M. Zhu , A. Schweinsberg , D. J. Gauthier , R. W. Boyd , and A. L. Gaeta , “ Tunable all-optical delays via Brillouin slow light in an optical fiber ,” Phys. Rev. Lett.   94 , 153902 ( 2005 ).
[Crossref] [PubMed]

R. W. Boyd , D. J. Gauthier , A. L. Gaeta , and A. E. Willner , “ Maximum time delay achievable on propagation through a slow-light medium ,” Phys. Rev. A   71 , 023801 ( 2005 ).
[Crossref]

Z. Zhu , D. J. Gauthier , Y. Okawachi , J. E. Sharping , A. L. Gaeta , R. W. Boyd , and A. E. Willer , “ Numerical study of all-optical slow-light delays via stimulated Brillouin scattering in an optical fiber ,” J. Opt. Soc. Am. B ,   22 , 2378 – 2384 ( 2005 ).
[Crossref]

M. S. Bigelow , N. N. Lepeshkin , and R. W. Boyd , “ Superluminal and Slow-light propagation in a room-temperature solid ,” Science   301 , 200 – 202 ( 2003 ).
[Crossref] [PubMed]

R. W. Boyd and D. J. Gauthier , “ ‘Slow’ and ‘Fast’ Light ,” Ch. 6 in Progress in Optics 43 , E. Wolf , Ed. ( Elsevier, Amsterdam , 2002 ), 497 – 530 .

Chiao, R. Y.

E. L. Bolda , J. C. Garrison , and R. Y. Chiao , “ Optical pulse propagation at negative group velocities due to a nearby gain ,” Phys. Rev. A   49 , 2938 – 2947 ( 1994 ).
[Crossref] [PubMed]

Dahan, D.

Dogariu, A.

L. J. Wang , A. Kuzmich , and A. Dogariu , “ Gain-assisted superluminal light propagation ,” Nature   406 , 277 – 279 ( 2000 ).
[Crossref] [PubMed]

Dutton, Z.

C. Liu , Z. Dutton , C. H. Behroozi , and L. V. Hau . “ Observation of coherent optical information storage in an atomic medium using halted light pulses ,” Nature   409 , 490 – 493 ( 2001 ).
[Crossref] [PubMed]

L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 metres per second in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
[Crossref]

Eisenstein, G.

Field, J. E.

S. E. Harris , J. E. Field , and A. Kasapi , “ Dispersive properties of electromagnetically induced transparency ,” Phys. Rev. A   46 , 29 ( 1992 ).
[Crossref]

Gaeta, A. L.

R. W. Boyd , D. J. Gauthier , A. L. Gaeta , and A. E. Willner , “ Maximum time delay achievable on propagation through a slow-light medium ,” Phys. Rev. A   71 , 023801 ( 2005 ).
[Crossref]

Z. Zhu , D. J. Gauthier , Y. Okawachi , J. E. Sharping , A. L. Gaeta , R. W. Boyd , and A. E. Willer , “ Numerical study of all-optical slow-light delays via stimulated Brillouin scattering in an optical fiber ,” J. Opt. Soc. Am. B ,   22 , 2378 – 2384 ( 2005 ).
[Crossref]

Y. Okawachi , M. S. Bigelow , J. E. Sharping , Z. M. Zhu , A. Schweinsberg , D. J. Gauthier , R. W. Boyd , and A. L. Gaeta , “ Tunable all-optical delays via Brillouin slow light in an optical fiber ,” Phys. Rev. Lett.   94 , 153902 ( 2005 ).
[Crossref] [PubMed]

Gaeta, Alexander L.

Garrison, J. C.

E. L. Bolda , J. C. Garrison , and R. Y. Chiao , “ Optical pulse propagation at negative group velocities due to a nearby gain ,” Phys. Rev. A   49 , 2938 – 2947 ( 1994 ).
[Crossref] [PubMed]

Gauthier, D. J.

Z. Zhu , D. J. Gauthier , Y. Okawachi , J. E. Sharping , A. L. Gaeta , R. W. Boyd , and A. E. Willer , “ Numerical study of all-optical slow-light delays via stimulated Brillouin scattering in an optical fiber ,” J. Opt. Soc. Am. B ,   22 , 2378 – 2384 ( 2005 ).
[Crossref]

R. W. Boyd , D. J. Gauthier , A. L. Gaeta , and A. E. Willner , “ Maximum time delay achievable on propagation through a slow-light medium ,” Phys. Rev. A   71 , 023801 ( 2005 ).
[Crossref]

Y. Okawachi , M. S. Bigelow , J. E. Sharping , Z. M. Zhu , A. Schweinsberg , D. J. Gauthier , R. W. Boyd , and A. L. Gaeta , “ Tunable all-optical delays via Brillouin slow light in an optical fiber ,” Phys. Rev. Lett.   94 , 153902 ( 2005 ).
[Crossref] [PubMed]

M. D. Stenner , D. J. Gauthier , and M. A. Neifeld , “ The speed of information in a ‘fast-light’ optical medium ,” Nature   425 , 695 – 698 ( 2003 ).
[Crossref] [PubMed]

R. W. Boyd and D. J. Gauthier , “ ‘Slow’ and ‘Fast’ Light ,” Ch. 6 in Progress in Optics 43 , E. Wolf , Ed. ( Elsevier, Amsterdam , 2002 ), 497 – 530 .

Harris, S. E.

L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 metres per second in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
[Crossref]

S. E. Harris , J. E. Field , and A. Kasapi , “ Dispersive properties of electromagnetically induced transparency ,” Phys. Rev. A   46 , 29 ( 1992 ).
[Crossref]

Hau, L. V.

C. Liu , Z. Dutton , C. H. Behroozi , and L. V. Hau . “ Observation of coherent optical information storage in an atomic medium using halted light pulses ,” Nature   409 , 490 – 493 ( 2001 ).
[Crossref] [PubMed]

L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 metres per second in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
[Crossref]

Herráez, M. G.

Kasapi, A.

S. E. Harris , J. E. Field , and A. Kasapi , “ Dispersive properties of electromagnetically induced transparency ,” Phys. Rev. A   46 , 29 ( 1992 ).
[Crossref]

Kuzmich, A.

L. J. Wang , A. Kuzmich , and A. Dogariu , “ Gain-assisted superluminal light propagation ,” Nature   406 , 277 – 279 ( 2000 ).
[Crossref] [PubMed]

Lepeshkin, N. N.

M. S. Bigelow , N. N. Lepeshkin , and R. W. Boyd , “ Superluminal and Slow-light propagation in a room-temperature solid ,” Science   301 , 200 – 202 ( 2003 ).
[Crossref] [PubMed]

Lezema, A.

A. M. Akulshin , Barreiro S. , and A. Lezema “ Steep anomalous dispersion in a coherently prepared Rb vapor ,” Phys. Rev. Lett.   83 , 4277 ( 1999 ).
[Crossref]

Liu, C.

C. Liu , Z. Dutton , C. H. Behroozi , and L. V. Hau . “ Observation of coherent optical information storage in an atomic medium using halted light pulses ,” Nature   409 , 490 – 493 ( 2001 ).
[Crossref] [PubMed]

Neifeld, M. A.

M. D. Stenner , D. J. Gauthier , and M. A. Neifeld , “ The speed of information in a ‘fast-light’ optical medium ,” Nature   425 , 695 – 698 ( 2003 ).
[Crossref] [PubMed]

Niklès, M.

M. Niklès , L. Thévenaz , and P. Robert , “ Brillouin gain spectrum characterization in single-mode optical fibers ,” J. Lightwave Technol. ,   LT-15 , 1842 – 1851 ( 1997 ).
[Crossref]

Okawachi, Y.

Robert, P.

M. Niklès , L. Thévenaz , and P. Robert , “ Brillouin gain spectrum characterization in single-mode optical fibers ,” J. Lightwave Technol. ,   LT-15 , 1842 – 1851 ( 1997 ).
[Crossref]

S., Barreiro

A. M. Akulshin , Barreiro S. , and A. Lezema “ Steep anomalous dispersion in a coherently prepared Rb vapor ,” Phys. Rev. Lett.   83 , 4277 ( 1999 ).
[Crossref]

Schweinsberg, A.

Y. Okawachi , M. S. Bigelow , J. E. Sharping , Z. M. Zhu , A. Schweinsberg , D. J. Gauthier , R. W. Boyd , and A. L. Gaeta , “ Tunable all-optical delays via Brillouin slow light in an optical fiber ,” Phys. Rev. Lett.   94 , 153902 ( 2005 ).
[Crossref] [PubMed]

Sharping, J. E.

Song, K. Y.

Stenner, M. D.

M. D. Stenner , D. J. Gauthier , and M. A. Neifeld , “ The speed of information in a ‘fast-light’ optical medium ,” Nature   425 , 695 – 698 ( 2003 ).
[Crossref] [PubMed]

Thévenaz, L.

M. G. Herráez , K. Y. Song , and L. Thévenaz , “ Optically controlled slow and fast light in optical fibers using stimulated Brillouin scattering ,” Appl. Phys. Lett.   87 , 081113 ( 2005 ).
[Crossref]

K. Y. Song , M. G. Herráez , and L. Thévenaz , “ Observation of pulse delaying and advancement in optical fibers using stimulated Brillouin scattering ,” Opt. Express   13 , 82 – 88 ( 2005 ), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-1-82 .
[Crossref] [PubMed]

K. Y. Song , M. G. Herráez , and L. Thévenaz , “ Long optically controlled delays in optical fibers ,” Opt. Lett.   30 , 1782 – 1784 ( 2005 ).
[Crossref] [PubMed]

M. Niklès , L. Thévenaz , and P. Robert , “ Brillouin gain spectrum characterization in single-mode optical fibers ,” J. Lightwave Technol. ,   LT-15 , 1842 – 1851 ( 1997 ).
[Crossref]

Wang, L. J.

L. J. Wang , A. Kuzmich , and A. Dogariu , “ Gain-assisted superluminal light propagation ,” Nature   406 , 277 – 279 ( 2000 ).
[Crossref] [PubMed]

Willer, A. E.

Willner, A. E.

R. W. Boyd , D. J. Gauthier , A. L. Gaeta , and A. E. Willner , “ Maximum time delay achievable on propagation through a slow-light medium ,” Phys. Rev. A   71 , 023801 ( 2005 ).
[Crossref]

Zhu, Z.

Zhu, Z. M.

Y. Okawachi , M. S. Bigelow , J. E. Sharping , Z. M. Zhu , A. Schweinsberg , D. J. Gauthier , R. W. Boyd , and A. L. Gaeta , “ Tunable all-optical delays via Brillouin slow light in an optical fiber ,” Phys. Rev. Lett.   94 , 153902 ( 2005 ).
[Crossref] [PubMed]

Appl. Phys. Lett. (1)

M. G. Herráez , K. Y. Song , and L. Thévenaz , “ Optically controlled slow and fast light in optical fibers using stimulated Brillouin scattering ,” Appl. Phys. Lett.   87 , 081113 ( 2005 ).
[Crossref]

J. Lightwave Technol. (1)

M. Niklès , L. Thévenaz , and P. Robert , “ Brillouin gain spectrum characterization in single-mode optical fibers ,” J. Lightwave Technol. ,   LT-15 , 1842 – 1851 ( 1997 ).
[Crossref]

J. Opt. Soc. Am. B (1)

Nature (4)

L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 metres per second in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
[Crossref]

C. Liu , Z. Dutton , C. H. Behroozi , and L. V. Hau . “ Observation of coherent optical information storage in an atomic medium using halted light pulses ,” Nature   409 , 490 – 493 ( 2001 ).
[Crossref] [PubMed]

L. J. Wang , A. Kuzmich , and A. Dogariu , “ Gain-assisted superluminal light propagation ,” Nature   406 , 277 – 279 ( 2000 ).
[Crossref] [PubMed]

M. D. Stenner , D. J. Gauthier , and M. A. Neifeld , “ The speed of information in a ‘fast-light’ optical medium ,” Nature   425 , 695 – 698 ( 2003 ).
[Crossref] [PubMed]

Opt. Express (3)

Opt. Lett. (1)

Phys. Rev. A (3)

S. E. Harris , J. E. Field , and A. Kasapi , “ Dispersive properties of electromagnetically induced transparency ,” Phys. Rev. A   46 , 29 ( 1992 ).
[Crossref]

R. W. Boyd , D. J. Gauthier , A. L. Gaeta , and A. E. Willner , “ Maximum time delay achievable on propagation through a slow-light medium ,” Phys. Rev. A   71 , 023801 ( 2005 ).
[Crossref]

E. L. Bolda , J. C. Garrison , and R. Y. Chiao , “ Optical pulse propagation at negative group velocities due to a nearby gain ,” Phys. Rev. A   49 , 2938 – 2947 ( 1994 ).
[Crossref] [PubMed]

Phys. Rev. Lett. (2)

A. M. Akulshin , Barreiro S. , and A. Lezema “ Steep anomalous dispersion in a coherently prepared Rb vapor ,” Phys. Rev. Lett.   83 , 4277 ( 1999 ).
[Crossref]

Y. Okawachi , M. S. Bigelow , J. E. Sharping , Z. M. Zhu , A. Schweinsberg , D. J. Gauthier , R. W. Boyd , and A. L. Gaeta , “ Tunable all-optical delays via Brillouin slow light in an optical fiber ,” Phys. Rev. Lett.   94 , 153902 ( 2005 ).
[Crossref] [PubMed]

Science (1)

M. S. Bigelow , N. N. Lepeshkin , and R. W. Boyd , “ Superluminal and Slow-light propagation in a room-temperature solid ,” Science   301 , 200 – 202 ( 2003 ).
[Crossref] [PubMed]

Other (1)

R. W. Boyd and D. J. Gauthier , “ ‘Slow’ and ‘Fast’ Light ,” Ch. 6 in Progress in Optics 43 , E. Wolf , Ed. ( Elsevier, Amsterdam , 2002 ), 497 – 530 .

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Figures (6)

Fig. 1.
Fig. 1.

Gain, refractive index change An and group index change ∆ng generated in an optical fiber in (a) single peak and (b) double peak configurations: v 1 and v 2, optical frequencies of the Brillouin gain peaks; v 0, central frequency of the probe pulse; ∆v, detuning frequency.

Fig. 2.
Fig. 2.

Experimental setup for optical delay measurement. Devices surrounded by the dashed box are only inserted for the double peak configuration: LD, laser diode; VOA, variable optical attenuator; EOM, electro-optic modulator; PD, photodiode; EDFA, erbium-doped fiber amplifier.

Fig. 3.
Fig. 3.

Time waveforms of probe pulses at a few selected ∆v’s in (a) single peak and (b) double peak configuration. The gain values of 10 dB (middle) and 20 dB (bottom) mean the maximum gains at ∆v=0 in both cases. The dashed lines indicate the peak position of the initial 37-ns probe pulse with no Brillouin pump.

Fig. 4.
Fig. 4.

Measured gain and time delay of probe pulses as a function of the detuning frequency ∆v in (a) single peak and (b) double peak configurations, respectively. The gain values of 10 dB (top) and 20 dB (bottom) mean the maximum gains at ∆v=0 in both cases. The dotted line indicates the original (no pump) position of probe pulses.

Fig. 5.
Fig. 5.

The FWHM of probe pulses as a function of ∆v normalized by the initial value (37 ns) in the case of (a) single peak and (b) double peak configurations, respectively. The gain means the maximum gain values at ∆v=0.

Fig. 6.
Fig. 6.

Calculated time delays and relative pulse widths normalized to the initial value according to the detuning frequency based on linear theory in (a) single peak and (b) double peak configurations. A uniform Brillouin gain of a Lorentzian shape with a FWHM of 30 MHz is assumed through the fiber and the maximum gain at ∆v=0 is set to 20 dB.

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