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Photonic devices using optical waveguides induced by dark spatial solitons
Photonic devices using optical waveguides induced by dark spatial solitons
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机译:使用由暗空间孤子引起的光波导的光子器件
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摘要
Optical switching devices for use in photonics applications are created in a body of an optically transparent defocusing material (10) having a third order non-linear susceptibility which is negative. The switching devices use optical waveguides which are created by the propagation through the material of dark spatial solitons, which are induced when an intense quasi-planar light wave, having an amplitude or phase perturbation to at least one point or region of its wavefront, is projected onto at least one location (11; 21, 24; 51, 52) on the surface of the body, to cause a change in its refractive index at the (or each) location. If the change in refractive index is rapid and transitory, an active photonic device is created. The devices created include steerable optical switches, cross-couplers, and multi-port optical switchyards.
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