Method of producing a planar optical coupler

US5030321A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Jochen Coutandin · Bretzenheim, DE
• Werner Groh · Lich, DE
• Peter Herbrechtsmeier · Königstein, DE
• Jurgen Theis · Oberursel, DE

Key dates

• Filing date: Jun 11, 1990
• Grant date: Jul 9, 1991
• Expiry date: Jun 11, 2010

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/3688
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Channels in which polymeric optical waveguides can be laid can be milled in surfaces of plastic sheets by means of an excimer laser. The free space between the optical waveguides is filled up with a transparent casting resin. The channels produced by means of the laser are distinguished by high dimensional accuracy and low surface roughness.