Waveguides induced by photorefractive screening solitons

Shih, Ming-Feng; Chen, Zhigang; Mitchell, Matthew; Segev, Mordechai; Lee, Howard; Feigelson, Robert S.; Wilde, Jeffrey P.

doi:10.1364/josab.14.003091

Cited by 132 publications

(67 citation statements)

References 37 publications

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“…This phenomenon is usually referred to as the soliton-induced waveguiding of a probe beam. It has been widely discussed theoretically and has also been observed experimentally [2][3][4][5][6].…”

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confidence: 88%

“…Moreover, in the case of saturable nonlinearity, dark-soliton waveguides remain single-moded [8], unlike the waveguides created by bright solitons [6].…”

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confidence: 99%

“…[3,4,6]). However, when the intensity of the probe beam is increased, the guided mode requires a broader waveguide and the beam interacts strongly with the waveguide, changing it in a self-consistent manner.…”

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confidence: 99%

“…Then the simplest solution of this kind describes a dark soliton of the field u, provided that w ≡ 0. This solution can be presented in quadratures and then found numerically [6]. For the component w, the dark soliton creates an effective waveguide.…”

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confidence: 99%

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Nonlinear theory of soliton-induced waveguides

Ostrovskaya

Kivshar

1998

Opt. Lett.

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We develop a nonlinear theory of soliton-induced waveguides that describes a finite-amplitude probe beam guided by a spatial dark soliton, in a saturable nonlinear medium. We suggest an effective way of controlling the interaction of these soliton-induced waveguides and also show that, in sharp contrast with scalar dark solitons, the dark-soliton waveguides can attract each other and even form stationary bound states.

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confidence: 88%

“…Moreover, in the case of saturable nonlinearity, dark-soliton waveguides remain single-moded [8], unlike the waveguides created by bright solitons [6].…”

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Nonlinear theory of soliton-induced waveguides

Ostrovskaya

Kivshar

1998

Opt. Lett.

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“…Weak signal beams passing along these optically induced gradient waveguides [4] are subject to effective induced-phase modulation and are trapped. In photorefractive NLM [5] the situation is even more spectacular [6]. Because of the wavelength-dependent material response, dark spatial solitons generated at low powers but at a photosensitive wavelength are able to guide and steer much more powerful 'signal' beams at non-photosensitive wavelengths.…”

Section: Introductionmentioning

confidence: 99%

Directional coupling of optical signals by odd dark beams with mixed phase dislocations

et al. 2001

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Numerical simulations on the evolution of step-screw and edge-screw optical phase dislocations in bulk saturable self-defocusing nonlinear media are presented, with emphasis on their ability to induce steering waveguides for signal beams (pulses). Two schemes for directional coupling of such signals, both ensuring reasonable coupling-to-cross-talk efficiency ratio, are investigated. The parameters useful for performance optimization of the couplers are discussed.

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Spatial optical (2+1)-dimensional scalar- and vector-solitons in saturable nonlinear media

et al. 2002

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2+1)-dimensional optical spatial solitons have become a major field of research in nonlinear physics throughout the last decade due to their potential in adaptive optical communication technologies. With the help of photorefractive crystals that supply the required type of nonlinearity for soliton generation, we are able to demonstrate experimentally the formation, the dynamic properties, and especially the interaction of solitary waves, which were so far only known from general soliton theory. Among the complex interaction scenarios of scalar solitons, we reveal a distinct behavior denoted as anomalous interaction, which is unique in soliton-supporting systems. Further on, we realize highly parallel, lightinduced waveguide configurations based on photorefractive screening solitons that give rise to technical applications towards waveguide couplers and dividers as well as all-optical information processing devices where light is controlled by light itself. Finally, we demonstrate the generation, stability and propagation dynamics of multi-component or vector solitons, multipole transverse optical structures bearing a complex geometry. In analogy to the particle-light dualism of scalar solitons, various types of vector solitons can -in a broader sense -be interpreted as molecules of light.

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Waveguides induced by photorefractive screening solitons

Cited by 132 publications

References 37 publications

Nonlinear theory of soliton-induced waveguides

Nonlinear theory of soliton-induced waveguides

Directional coupling of optical signals by odd dark beams with mixed phase dislocations

Spatial optical (2+1)-dimensional scalar- and vector-solitons in saturable nonlinear media

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