Optical material having periodically varying refractive...

G - Physics – 02 – B

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G02B 6/13 (2006.01) C03C 25/00 (2006.01) C03C 25/60 (2006.01)

Patent

CA 2265975

The present invention relates to an optical means, a method of using and manufacturing respectively optical means in the form of material or components that has/have a spatially varying chemical composition by virtue of diffusion of mobile substances (35) therein and temperature changes (36, 38, 42, 44) that enable the manufacture of optical material or components having spatially varying optical properties. The method is well suited for creating refractive index variations in optical materials for the manufacture of optical waveguides or for creating periodic refractive index variations in different types of optical waveguides.

Cette invention concerne un dispositif optique ainsi qu'un procédé d'utilisation et de fabrication, respectivement, de ce dernier. Ce dispositif optique se présente sous forme d'un matériau ou de composants possédant une composition chimique qui varie dans l'espace, ceci grâce à la diffusion de substances mobiles (35) dans ces derniers, et à des changements de température (36, 38, 42, 44). Cette diffusion et ces changements permettent de fabriquer des matériaux ou des composants optiques possédant des propriétés optiques qui varient dans l'espace. Ce procédé peut tout particulièrement être utilisé afin de produire des variations d'indice de réfraction dans des matériaux optiques servant à la fabrication de guides d'ondes optiques. Ce procédé peut encore être utilisé afin de produire des variations périodiques d'indice de réfraction dans différents types de guides d'ondes optiques.

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