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:
Apr. 26, 2005
Filed:
Mar. 05, 2001
Applicants:
Adalbert Bandemer, Herrsching, DE;
Egbert Krause, Burgstaedt, DE;
Inventors:
Adalbert Bandemer, Herrsching, DE;
Egbert Krause, Burgstaedt, DE;
Assignee:
Thorlabs GmbH, Karlsfeld, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B006/00 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to a device for detecting the PMD of optoelectronic transmission lines. The inventive device is characterized in that it comprises a narrow-band, tunable laser, whose illumination is superimposed with the illumination of the transmission line to be analyzed and an optoelectronic heterodyne receiver which receives the superimposed signal.