Commissariat a L'energie Atomique

Opsitech-optical System on a Chip

Patrick Mottier

Michel Bruel

Serge Valette

Claude Massit

Francedillaois Marion

Joël Alanis

A device for transmitting optical waves has a structure having at least an optical guide element wherein the structure comprises hollow parts or notches () adapted to receive the end parts () of an optical fiber () such that the fiber spans the surface () of the structure separating the hollow parts and the ends of the optical fiber are respectively optically coupled to optical guide elements () of the structure. The invention also concerns a method for making such a device which consists in etching the notch by cutting off the end of the optical micro-guide. The device is useful for producing optical switches.

Device for transmitting an optical wave in a structure provided with an optical fiber and method for making same

Assembly of optical components optically aligned and method for making

Fresnel lens for integrated optics of the type having a number of overlayers deposited on the surface of a waveguide propagating a wave in accordance with a given propagation mode, the overlayer of order m starting from the axis is of width 1.sub.m =.sqroot.(m+1).lambda.f - .sqroot.m.lambda.f and is at the distance from the axis r.sub.m =.sqroot.m.lambda.f in which f is the focal distance of the lens, .lambda. the wavelength of the light in the guide and m a parameter successively assuming the different values of the natural sequence of integers from 1 to p+1, wherein the thickness and/or the length of each film is at least equal to the penetration of absorption distance of the wave guided in or beneath the overlayer for the adopted propagation mode.

Fresnel lens for integrated optics

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Grenoble, France

Patrick Mottier