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Optics Letters

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  • Vol. 19, Iss. 17 — Sep. 1, 1994
  • pp: 1296–1298

Stability of photorefractive spatial solitons

Mordechai Segev, Bruno Crosignani, Paolo Di Porto, Amnon Yariv, Galen Duree, Gregory Salamo, and Edward Sharp  »View Author Affiliations


Optics Letters, Vol. 19, Issue 17, pp. 1296-1298 (1994)
http://dx.doi.org/10.1364/OL.19.001296


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Abstract

We present a theoretical analysis of the stability of photorefractive spatial solitons along with experimental results that show that the solitons are stable for small-scale perturbations but break down when the perturbations exhibit a transverse scale comparable with the soliton size (cross section).

© 1994 Optical Society of America

History
Original Manuscript: February 10, 1994
Published: September 1, 1994

Citation
Mordechai Segev, Galen Duree, Gregory Salamo, Bruno Crosignani, Paolo Di Porto, Edward Sharp, and Amnon Yariv, "Stability of photorefractive spatial solitons," Opt. Lett. 19, 1296-1298 (1994)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-19-17-1296


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References

  1. M. Segev, B. Crosignani, A. Yariv, B. Fischer, Phys. Rev. Lett. 68, 923 (1992). [CrossRef] [PubMed]
  2. B. Crosignani, M. Segev, D. Engin, P. DiPorto, A. Yariv, G. Salamo, J. Opt. Soc. Am. B 10, 446 (1993). [CrossRef]
  3. G. Duree, J. L. Shultz, G. Salamo, M. Segev, A. Yariv, B. Crosignani, P. DiPorto, E. Sharp, R. R. Neurgaonkar, Phys. Rev. Lett. 71, 533 (1993). [CrossRef] [PubMed]
  4. M. Segev, A. Yariv, G. Salamo, G. Duree, J. Shultz, B. Crosignani, P. DiPorto, E. Sharp, Opt. Photon. News 4(12), 9 (1993). [CrossRef]
  5. G. Duree, G. Salamo, M. Segev, A. Yariv, B. Crosignani, P. DiPorto, E. Sharp, Opt. Lett. 19, 1195 (1994). [CrossRef] [PubMed]
  6. Because beam fanning is a result of energy-exchange interactions (generated by diffusion fields) between the beam and scattered noise, we use two separate effects to eliminate it: (i) for a beam size that is much smaller than 100 μm, the cross section for interaction with noise in directions that differ significantly from z is very small [seeM. Segev, Y. Ophir, B. Fischer, Opt. Commun. 77, 265 (1990)]; (ii) we operate at external voltages that generate space-charge fields that are much larger than the diffusion field1,2: E0 ≫ Ed ≈(kBT/q)[(∂I/∂x)/I] ≈ (kBT/ql), which is ≈8 V/cm in our experiments. [CrossRef]

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