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:
Mar. 20, 2018
Filed:
Sep. 17, 2009
Jan-olof Wesstrom, Stockholm, SE;
Per Granestrand, Tyreso, SE;
Stefan Hammerfeldt, Ekero, SE;
SYNTUNE AB, Kista, SE;
Abstract
A waveguide for the extraction of light at low levels of reflection arranged to guide light from an electro-optical component on a chip to a facet on the chip for extraction includes a first part and a second part. The first part () is extended, the second part () includes a surface (JK) through which the light exits from the waveguide (). A non-adiabatic longitudinal section (GHLM) is located after the first part () but before the surface (JK) in the direction of propagation of the light, and the surface (JK) forms in the plane of the chip a first angle (V) with the optical axis (A) of the first part () that lies between 5 and 80 degrees.