Optics: measuring and testing – For optical fiber or waveguide inspection
Reexamination Certificate
2008-07-15
2008-07-15
Nguyen, Tu T (Department: 2886)
Optics: measuring and testing
For optical fiber or waveguide inspection
Reexamination Certificate
active
07400387
ABSTRACT:
The invention relates to a method for monitoring an optical transmission line of an optical data network, wherein light is sent into the optical transmission line at a line input, and backscattered light of said light is detected at said line input and analysed, wherein during normal operation of said optical network, burst mode optical signals carrying a digital payload are sent onto the optical transmission line at the line input, and the backscattered light of said burst mode optical signals is detected at said line input and analysed. The inventive method is simple and cost-effective.
REFERENCES:
patent: 5416623 (1995-05-01), Dawson
patent: 6075628 (2000-06-01), Fisher
patent: 6731677 (2004-05-01), Hurst et al.
patent: 6882662 (2005-04-01), Subrahmanyan et al.
patent: 0 560 426 (1993-09-01), None
patent: 1 524 781 (2005-04-01), None
G. Biain et al, “New techinque for nonintrusive OTDR based on traffic data correclation”, Electronics Ldtters, IEE Stevenage, GB, vol. 30, No. 17, Aug. 18, 1994, pp. 1443-1444, XP006000939.
Materials from Lecture: Messverfahren zur Charakterisierung von Lichtwellenleitern un-komponenten at the Symposium—Nachrichtenubertragung mit Lichtwellenleitern—Technische Akademie Esslingen, Oct. 18-20, 2000, Ostfildern-Nellingen (Germany).
Alcatel
Nguyen Tu T
Sughrue & Mion, PLLC
LandOfFree
Method for monitoring an optical transmission line,... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for monitoring an optical transmission line,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for monitoring an optical transmission line,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2759255