International Standard Electric Corporation

Alcatel

Alcatel N.v.

Gerhard Seibold

Gerhard Wessel

Felix Lutz

Joachim Lauckner

Heinz Ebner

Anton Ambrosy

Hans Volz

Reimund Dorn

Matjaz Florjancic

Stauros Smernos

Horst Richter

Jorg Hehmann

Sigrun Schneider

Ernst Halder

Otto Thaidigsmann

Johann Gundert

Gabriele I Koch

Gunter Kuhnemann

Ingo Isert

Werner Haspel

The invention relates to a substrate (SUB) serving as a support, an optical waveguide (OWL) disposed on the substrate (SUB) and electrical conduction paths (ELB). Conventionally, the electrical conduction paths are placed on a thin insulating layer covering the substrate. According to the invention, the electrical conduction path (ELB) are routed on top of the surface (WOF) of the optical waveguide (OWL). This provides an improved insulation of the electrical conduction paths (ELB); moreover, the substrate surface is better utilized. Preferably, the electrical conduction paths (ELB) which are placed in ramp-like recesses (RA), are routed from the substrate surface (SOF) upwards to the surface (WOF) of the optical waveguide (OWL). The invention can be employed most advantageously proximate to laser bars where several conduction paths which are combined to form coplanar electrical waveguides, are arranged in a tight space.

Photonic component with electrical conduction paths

The invention concerns a device whereby micro-optic parts, particularly those that tend to tilt because of their geometric dimensions, can be precisely arranged on a support. The device according to the invention comprises a support (TR) on which several guide elements (FE1 . . . FE4) are placed in cutouts (A1 l . . . A4). The arrangement of the guide elements (FE1 . . . FE4) is such that the micro-optic part (BT) to be positioned can be inserted between the guide elements (FE1 . . . FE4). In this way an active adjustment is not required. In a particularly advantageous embodiment of the invention, the guide elements (FE1 . . . FE4) touch the micro-optic part (BT) at points that are located at different distances from the surface of the support (TR). In this way tilting is prevented in a particularly effective manner. The support (TR) is made of a silicon substrate for example; the guide elements (FE1 . . . FE4) can be uncoated spherical lenses which are placed in cutouts etched into the substrate by means of wet chemical methods.

Micro-optic device with means for precisely positioning micro-optic

A circuit board with a cooling device having channels through which a cooling agent flows, the circuit board being comprised of at least three united layers including an inner layer wherein the channels are formed.

Circuit board with cooling device

A positioning device comprising a bolt having a transducer and an optical waveguide fixed inside a guide sleeve mounted concentric with the longitudinal axis of the bolt. Supporting members on the bolt for the transducer and the guide sleeve are arranged in a spaced relation. The supporting member for the guide sleeve comprises a semi-cylindrical shell provided with an extended supporting arm on which the sleeve is mounted. A plate-shaped supporting member for the transducer is mounted in the shell. To achieve an improved separation of the heat-flow paths, slots are cut on opposite sides of the supporting arm into the shell.

Device for holding in position a transducer and an optical waveguide

The disclosed invention relates to an electro-optical device for use with a facsimile printer, telecopier, etc., designed to accommodate line-at-a-time output of picture information with the aid of an electrically controllable electro-optical substrate made from a transparent electro-optical material, with the optical effect being controlled by applying a voltage between two control electrodes arranged next to each other on the substrate. According to a preferred embodiment of the invention, within the area (4) of the substrate (1) to be controlled, and in addition to the control electrodes (2,3), there is provided at least one additional electrode (7) which may be common to several such areas (4), with each area (4) to be controlled having a corresponding opening (8) in the additional electrode (7) and the two control electrodes (2, 3) being spaced apart from each other on one side of the substrate (1) and the one or more additional electrodes (7) being arranged on the opposite side of the substrate. By applying a suitable voltage to the additional electrode (7), the electro-optical effect of the substrate can be varied within the areas (4) independently of the control (switching) voltage applied to the control electrodes (2, 3). Thus, various grey values can be provided; alternatively, a particular substrate (1) can be matched or adapted to one from another production batch and the control voltages can be kept to minimal levels.

Electro-optical device

An optical switch comprising a controlled ferroelectric light permeable ceramic provided with electrodes. To simplify the manufacture and to realize a larger switch, the invention provides a baseplate with electrodes and the ferroelectric ceramic is secured thereon in the form of one or more strips.

Optical switch

A device for controlling the spot elements of an optically controllable component in a facsimile recorder which permits a high writing speed with minimum circuitry. The plurality of spot elements of the controllable optical component are combined in n groups of m&gt;1 spot elements each, the m spot elements of a group forming a partial line. The individual partial lines are energized successively in time, while their m spot elements are energized simultaneously, the respective n-1 nonenergized partial lines completely blocking the light flux.

Facsimile recorder

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Remseck, Germany

Gerhard Seibold