Photonic devices using optical waveguides induced by dark spatia

Details Photonic devices using optical waveguides induced by dark spatia Photonic devices using optical waveguides induced by dark spatia

1994-12-07

1995-11-21

Lee, John D.

Optical waveguides

Having nonlinear property

359332, G02F 135

Patent

active

054695252

ABSTRACT:
Optical switching devices for use in photonics applications are created in a body of an optically transparent defocusing material 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 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.

REFERENCES:
patent: 4928282 (1990-05-01), Barthelemy et al.
patent: 4932739 (1990-06-01), Islam
patent: 4962987 (1990-10-01), Doran
patent: 5078464 (1992-01-01), Islam
patent: 5101456 (1992-03-01), Islam
patent: 5157744 (1992-10-01), Korotky

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