Title:
ADAPTOR ARRANGEMENT FOR DETECTING FAULTS IN AN OPTICALLY AMPLIFIED MULTI-SPAN TRANSMISSION SYSTEM USING A REMOTELY LOCATED OTDR
Document Type and Number:
WIPO Patent Application WO2004019076
Kind Code:
A3
Abstract:
A method is provided for using OTDR with a bi-directional optical transmission system that includes first and second terminals (310, 320) interconnected by at least first and second unidirectional optical transmission paths (306, 308) having at least one repeater (314) therein. The method begins by transmitting optical probe signals over the first optical path and receiving over the second optical path returned OTDR signals in which status information concerning the first optical is embodied. The optical probe signals and the returned OTDR signals are transmitted and received, respectively, at time intervals allowing individual spans of this optical path, which are separated by the repeater or repeaters, to be monitored in a sequential manner.
Inventors:
EVANGELIDES STEPHEN G JR
MORREALE JAY P
NEUBELT MICHAEL J
MORREALE JAY P
NEUBELT MICHAEL J
Application Number:
PCT/US2003/026108
Publication Date:
May 06, 2004
Filing Date:
August 20, 2003
Export Citation:
Assignee:
RED SKY SYSTEMS INC (US)
International Classes:
H04B10/02; H04B10/08; (IPC1-7): H04B10/16; H04B10/18
Foreign References:
| US5737105A | 1998-04-07 | |||
| US6005694A | 1999-12-21 | |||
| US6337936B1 | 2002-01-08 |
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