Sequences of high-order dark photorefractive spatial solitons and soliton-induced waveguides formed in bulk SBN

Zhigang Chen; Mordechai Segev

doi:10.1117/12.253214

30 September 1996 Sequences of high-order dark photorefractive spatial solitons and soliton-induced waveguides formed in bulk SBN

Zhigang Chen, Mordechai Segev

Author Affiliations +

Proceedings Volume 2896, Photorefractive Materials; (1996) https://doi.org/10.1117/12.253214
Event: Photonics China '96, 1996, Beijing, China

Abstract

Steady-state dark photorefractive spatial screening solitons are observed in an odd- or even-number sequence when a laser beam containing 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 (SBN) 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 solitons. We show that these dark solitons induce stable waveguides which can guide an intense beam of a different wavelength into multiple channels.

Citation Download Citation

Zhigang Chen and Mordechai Segev "Sequences of high-order dark photorefractive spatial solitons and soliton-induced waveguides formed in bulk SBN", Proc. SPIE 2896, Photorefractive Materials, (30 September 1996); https://doi.org/10.1117/12.253214

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