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:
Sep. 22, 2009
Filed:
Dec. 19, 2007
Jürgen Brendel, Nyon, CH;
Jürgen Brendel, Nyon, CH;
Luciol Instruments SA, Mies, CH;
Abstract
An optical time domain reflectometer (OTDR) operates in a gated mode, enabling a predetermined width of an optical fiber to be analyzed. The OTDR may test only a desired position on the fiber. Data obtained along different lengths of the fiber may be combined together, providing a thorough representation of the fiber characteristics. Alternatively, specific regions of the fiber may be analyzed. The OTDR measures the backscattered signal using photon-counting techniques, and improves the accuracy of such algorithms by attenuating the incoming backscattering signals automatically and independently at each position in the fiber being tested. The OTDR simultaneously achieves a high dynamic range and a high temporal/spatial resolution, an improvement over conventional OTDRs.