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. 27, 2015
Filed:
Dec. 28, 2012
Peter J. Winzer, Aberdeen, NJ (US);
Kyle C. Guan, Aberdeen, NJ (US);
Emina Soljanin, Green Village, NJ (US);
Peter J. Winzer, Aberdeen, NJ (US);
Kyle C. Guan, Aberdeen, NJ (US);
Emina Soljanin, Green Village, NJ (US);
Alcatel Lucent, Boulogne-Billancourt, FR;
Abstract
Various embodiments provide for detection of tapping of an optical signal. In one embodiment an optical fiber includes a cladding region and first and second core regions. The first core region has a first core medium having a first mode-dependent loss (MDL) figure of merit. The second core region has a second core medium having a second different MDL figure of merit. Tapping of the optical signal may be determined to occur when the MDL of the first and second optical signals differs by a predetermined threshold value.