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. 24, 2015
Filed:
Dec. 21, 2011
Peter Russbuldt, Aachen, DE;
Johannes Weitenberg, Aachen, DE;
Joachim Pupeza, Munich, DE;
Thomas Udem, Munich, DE;
Peter Russbuldt, Aachen, DE;
Johannes Weitenberg, Aachen, DE;
Joachim Pupeza, Munich, DE;
Thomas Udem, Munich, DE;
Fraunhofer-Gelleschaft zur Foerderung der angewandten Forschung e.V., Munich, DE;
Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V., Munich, DE;
RWTH Aachen, Aachen, DE;
Abstract
The present invention relates to a stable optical cavity, in which an obstacle is formed or arranged on the optical axis in the form of a through-opening in one of the mirrors or of an input- or output-coupling element, in order to enable a direct geometric access to the optical axis. The mirrors of the cavity are arranged such that a degeneracy of a plurality of transverse eigenmodes of the cavity occurs without an obstacle, by the combination of which an intensity minimum is obtained in the cavity with an obstacle at the position of the through-opening or of the input- or output-coupling element. With this configuration an optical cavity of high finesse which has a position of maximum intensity on the optical axis can be realized.