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:
May. 27, 2003
Filed:
Oct. 05, 1999
Contraves Space AG, Zurich, CH;
Abstract
A device is used for generating error signals for regulating the optical alignment of two lightwaves in connection with coherent heterodyne reception and comprises a receiver device ( ) arranged focused opposite a front face at the end of a lightwave fiber ( ) in order to make possible the transmission of the received information lightwave through the lightwave fiber ( ) to an optical waveguide coupler ( ), which is connected via a further lightwave fiber ( ) with a local laser ( ) and via two further lightwave fibers ( ) with respectively one detector ( ) for generating at least one error signal (Sr). A piezoelectric deflection unit ( ) acts on this front face of the lightwave fiber ( ) located in the focusing area of the receiving device.