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:
Dec. 31, 1991
Filed:
Sep. 09, 1990
Cornelius Cremer, Muenchen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
In order for the waveguiding layer disposed on a substrate to handle both TE-polarized light and TM-polarized light, the arrangement includes a metal layer that is arranged close to the waveguiding layer so that the propagation speed of the TM-polarized photons (of the TE- and TM-polarized photons guided in the waveguiding layer) is reduced by the metal layer, whose thickness is selected so thin that the TE-polarized and the TM-polarized photons are still capable of propagation in the waveguiding layer. This new arrangement is particularly useful in integrated optical demultiplexers.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile