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Optical and Quantum Electronics

Erschienen in:

01.06.2018

Bright screening solitons in a photorefractive waveguide

verfasst von: Aavishkar Katti

Erschienen in: Optical and Quantum Electronics | Ausgabe 6/2018

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Characteristics of propagation of bright screening solitons are studied in a photorefractive waveguide. The investigation is performed under paraxial wave approximation and Wentzel–Kramers–Brillouin–Jefferys approximation. A Gaussian ansatz for the soliton shape is used instead of the numerical solutions. The planar waveguide structure intensifies the self-focussing while decreasing the minimum or threshold power required for self trapping. The waveguide structure embedded in the crystal can self trap a soliton of power lower than the threshold power. As the waveguide parameter increases, minimum required power to self trap the beam decreases. The existence of bistable states is also predicted. Four regimes of power are identified in which the solitons behaviour is studied. Propagation of screening solitons in a photorefractive waveguide is studied in the absence of the photovoltaic and pyroelectric effect for the first time.

Vorheriger Artikel Ultralow-bending-loss surface-plasmon-polariton waveguides

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Titel: Bright screening solitons in a photorefractive waveguide
verfasst von: Aavishkar Katti
Publikationsdatum: 01.06.2018
Verlag: Springer US
Erschienen in: Optical and Quantum Electronics / Ausgabe 6/2018
Print ISSN: 0306-8919
Elektronische ISSN: 1572-817X
DOI: https://doi.org/10.1007/s11082-018-1524-y

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