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:
Feb. 22, 2000
Filed:
Oct. 23, 1996
Applicant:
Inventor:
Howard D Kidorf, Red Bank, NJ (US);
Assignee:
Tyco Submarine Systems Ltd, Morristown, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
359110 ; 359152 ; 359173 ; 356 731 ;
Abstract
A path couples a pair of optical fibers in an optical transmission system. The transmission system includes a plurality of optical amplifiers placed along the transmission line. Associated with these optical amplifiers are optical isolators that limit the flow of optical energy to a single direction. The path allows reflected or scattered light from one optical fiber after the optical isolator to be returned via the other optical fiber. This enables an OTDR device to obtain measurement information along the entire length of the fibers between optical isolators.