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:
Oct. 18, 2011
Filed:
Jun. 04, 2008
Applicants:
Per Granestrand, Tyreso, SE;
Jan-olof Wesstrom, Stockholm, SE;
Dave Adams, Stockholm, SE;
Inventors:
Assignee:
Syntune AB, Kista, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A transition part () between two optical waveguides () with different index contrast is characterised in that the transition part () includes a non-adiabatically up-tapered longitudinal section (), and in that the transition () between the two waveguides () is arranged after the up-tapered longitudinal section () as seen along the main direction (L) of propagation of the light. A method of manufacturing the transition part is also described.