Siemens Aktiengesellschaft

Holger Karstensen

Hartmut Schneider

Ekkehard Klement

Werner Spaeth

Ralf Dietrich

Franz Mayerhofer

Christian Gerndt

Helmut Zarschizky

Helmut Zarschitzky

Helmut Zrschizky

Means for connecting electronic devices for communication with one

A diffractive optical apparatus has a planarly expansive, diffracting structure with a plurality of structural sub-regions, each of this sub-regions directing a portion of a light falling thereon to onto other spatial points allocated to the structural sub-regions independently of the remaining structural sub-regions. Diffracting structure provides beam splitting with a high fan out and high efficiency for use, for example, in computers at a board level or chip level.

Diffractive optical device for the optical imaging of a spatial point

A compact bidirectional transmission and reception arrangement has a planar convex lens having a separate filter on a planar surface of the lens. The lens is positioned between a transmitter and a receiver. The filter is not transmissive to a first wavelength emitted by the transmitter but is transmissive to a second wavelength which is received by the receiver. The lens and transmitter and receiver are arranged so that light of the first wavelength emitted by the transmitter is reflected by the planar surface of the lens to a spot and light coming from the spot will be passed through the lens to a window of the receiver.

Bidirectional optical transmission and reception arrangement

An optical coupling element having a convex, refractive microlens is characterized by a ball having a flat, planar surface being mounted in a through-hole of a carrier lamina with the flat, planar surface extending parallel to a planar surface of the lamina. The coupling element is preferably made by a method which involves forming a through-hole in a lamina, mounting a ball in the through-hole, processing a surface of the ball to form the planar surface that extends parallel to a surface of the lamina. Preferably, a plurality of coupling elements are formed by providing a plurality of through-holes in an enlarged carrier and after processing, each individual coupling element is then separated from this enlarged carrier.

Optical coupling element having a convex microlens and the method of

A birefringent optical waveguide structure comprises at least one or more strip waveguides of a first material embedded in a cladding layer of a second glass with at least one additional layer being applied on the cladding layer. The strip waveguides have a refractive index which is higher than the refractive index of the second glass of the cladding layers and the additional layer applies a mechanical stress to the strip waveguides which has a component extending perpendicular to the strip waveguides. Preferably, the mechanical stress is formed by the material of the additional layers having a different thermal expansion coefficient and a different elasto-optical coefficient than the materials forming the cladding layer and the strip waveguides. The method of forming the device includes rapidly cooling the structure from an elevated temperature to room temperature to create the mechanical stresses.

Birefringent optical waveguide structure having a strip waveguide buried

A device for optically connecting one or several optical emitters with one or several optical detectors of integrated circuits characterized by a substrate, a spacer disposed on the substrate providing recesses for each of the integrated circuits and components and a cover plate with either a light waveguide structure extending between the various emitters and detectors interposed either between the cover plate and spacer or on one of the cover plates and spacers or a distributing element positioned on a surface of the cover plate for distributing light emitted by the optical emitter in one recess to the detectors of the same recess or both. The waveguide system allows interconnecting an optical emitter of one unit or component with a detector of another unit component or components. The distributing element allows connecting the optical emitter to the optical detector of a single unit. Thus, selection of the two types of optical arrangements allows an external connection of one component to another component or internal connections of elements of a single component.

Device for optical connections of one or more optical emitters with one

A spherical planoconvex lens for optically coupling a semiconductor laser to an optical waveguide characterized by a thickness of the lens from a planar surface to a vertex of the spherical convex lens surface being greater than the radius of the spherical convex surface but small enough that a focal point of the lens on a laser side lies outside of the lens at a small distance from the planar lens surface. The lens can be formed of either silicon or germanium and has a higher coupling efficiency than is achieved with previously known hemispherical planoconvex lenses of silicon.

Growing community of inventors

Hohenbrunn, Germany

Holger Karstensen