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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 14, Iss. 6 — Jun. 1, 1997
  • pp: 1407–1417

Sequential formation of multiple dark photorefractive spatial solitons: experiments and theory

Zhigang Chen, Mordechai Segev, Sujata R. Singh, Tamer H. Coskun, and Demetrios N. Christodoulides  »View Author Affiliations


JOSA B, Vol. 14, Issue 6, pp. 1407-1417 (1997)
http://dx.doi.org/10.1364/JOSAB.14.001407


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Abstract

Steady-state dark photorefractive spatial screening solitons are observed in an odd- or even-number sequence when a laser beam that contains a dark stripe generated from a phase or amplitude discontinuity in the center of the beam is launched into a biased bulk strontium barium niobate crystal. If the initial width of the dark stripe is small, only a fundamental soliton or a Y-junction soliton is generated, corresponding to the lowest order in the odd- or even-number soliton sequence. As the initial width and the bias field are increased, we observe a progressive transition from a lower-order soliton to a sequence of higher-order multiple solitons. We show that these dark solitons induce stable waveguides that can guide an intense beam of a different wavelength into multiple channels. Comparisons between experiments and theory on multiple dark spatial solitons are presented and shown to be in good agreement.

© 1997 Optical Society of America

Citation
Zhigang Chen, Mordechai Segev, Sujata R. Singh, Tamer H. Coskun, and Demetrios N. Christodoulides, "Sequential formation of multiple dark photorefractive spatial solitons: experiments and theory," J. Opt. Soc. Am. B 14, 1407-1417 (1997)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-14-6-1407


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