The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2000
Filed:
Dec. 19, 1997
Alcatel, Paris, FR;
Abstract
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.