Light wave guide with low reflectivity

US8649641B2 · kind B2 · utility

Assignee

• SYNTUNE AB · SE

Inventors

• Jan-Olof Wesström · Barcelona, ES
• Dave Adams · Stockholm, SE

Key dates

• Filing date: May 11, 2010
• Grant date: Feb 11, 2014
• Expiry date: Jul 16, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/2813
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An optical light splitter includes or is connected to at least two input waveguides (4; 6, 7; 18, 19; 32,33) for light. The light splitter (1, 2, 30, 40), on the side opposite to the input waveguide or input waveguides (4; 6, 7; 18, 19; 32, 33; 41, 42) transitions into at most one output waveguide (8, 10, 20, 34) in the direction of propagation of the incoming light. A surface (14, 25, 31, 45) is present set at an angle to the direction of propagation of the light in that part of the light splitter that is opposite to the input waveguide or input waveguides, the surface is present where the light splitter has an image from incoming light, and internal corners are not present in the part.