Photonic component with electrical conduction paths

Details Photonic component with electrical conduction paths Photonic component with electrical conduction paths

G - Physics

02

B

G02B 6/12 (2006.01) G02B 6/122 (2006.01) H01L 27/00 (2006.01) H01S 5/02 (2006.01) H01S 5/042 (2006.01) G02B 6/42 (2006.01) H01S 5/026 (2006.01)

Patent

CA 2222859

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.

Substrat (SUB) servant de support, guide optique (OWL) disposé sur le substrat (SUB) et trajets de conduction électrique (ELB). Dans les modèles classiques, les trajets de conduction électrique (ELB) sont formés sur une mince couche isolante recouvrant le substrat. Suivant l'invention, ils sont formés sur le dessus de la surface (WOF) du guide optique (OWL). Ainsi, ils sont ainsi mieux isolés et la surface du substrat est mieux utilisée. De préférence, les trajets de conduction électrique (ELB) qui sont constitués dans des enfoncements en pente (RA) vont de la surface du substrat (SOF) vers le haut jusqu'à la surface (WOF) du guide optique (OWL). L'invention est des plus avantageuses lorsqu'elle est employée à proximité de barres laser; elle permet alors de regrouper dans un espace étroit plusieurs trajets de conduction combinés pour former des guides d'ondes électriques coplanaires.

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