Abstract: A device for transmitting optical waves has a structure having at least an optical guide element wherein the structure comprises hollow parts or notches (9, 10) adapted to receive the end parts (13, 14) of an optical fiber (12) such that the fiber spans the surface (11a) of the structure separating the hollow parts and the ends of the optical fiber are respectively optically coupled to optical guide elements (7, 8) 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.

Abstract: The invention concerns a method and a device for transmitting an optical wave comprising at least an input optical guiding means and an output optical guiding means between which an optical wave is capable of passing through via their adjacent end surfaces and actuating means for moving one of the optical guiding means relative to the other, wherein the detecting means (22) sense a measuring signal representing the optical wave intensity in the output guiding means (9); comparing means (24) compare the value of said measuring signal to a reference value associated with a desired value of the optical wave intensity in the output guiding means and delivering a comparison signal (26) according to the result of said comparison; and control means (26) subjected to said comparison signal delivering a signal controlling said actuating means (13a) to adjust the position of the input guiding means.

Abstract: A device for transmitting optical waves comprises a structure having at least an optical guide element wherein the structure comprises hollow parts or notches (9, 10) adapted to receive the end parts (13, 14) of an optical fibre (12) such that the fibre spans the surface (11a) of the structure separating the hollow parts and the ends of the optical fibre are respectively optically coupled to optical guide elements (7, 8) 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.

Abstract: An optically aligned optical component assembly. Each optical component has a plurality of first fastening studs. The surface of a support is provided with second fastening studs, where the second studs are formed with parts made of a material that can be soldered to the studs. The optical components are assembled onto the support using corresponding parts. The volume of each part is determined so that the components are optically aligned along a direction that is perpendicular to the surface of the support. This is especially used in the field of microelectronics.

Abstract: 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.