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. 22, 2002
Filed:
Mar. 25, 1999
Helmut Albrecht, München, DE;
Dieter Rosenberger, Sauerlach, DE;
Gerhard Heise, München, DE;
Bernhard Bayersdorfer, Baierbach, DE;
Herbert Michel, München, DE;
Achim Reichelt, Unterhaching, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The coupling device comprises a displacement arrangement for displacing the two waveguide end surfaces relative to one another parallel to the end surfaces and the arrangement has an expansion element that moves the end surfaces relative to one another on the basis of a spatial expansion and/or contraction of the element. With this coupling device tunable optical multi-channel filters with temperature compensation, optical attenuators and waveguide switches can advantageously be realized in a simple manner.