Optical communications – Fault recovery – Bypass inoperative element
Reexamination Certificate
2001-02-21
2008-11-11
Li, Shi K. (Department: 2613)
Optical communications
Fault recovery
Bypass inoperative element
C398S004000, C385S027000
Reexamination Certificate
active
07450843
ABSTRACT:
In an optical communication link a first node (30) with transmission means (50) and a second node with receiving means (40) are connected by at least two optical fiber transmission paths (100,200). One path serves as the working path, while the remaining path or paths serve as protection paths. The transmission means in the first node is connected to an optical signal power splitter (60) which couples the signal power from the transmitting means unequally into the different transmission paths. This uneven coupling of signal power imposes greater losses in one path than in the other or others. By arranging the splitter to couple a higher proportion of the transmitted optical power into the path that has the highest inherent losses the additional loss imposed on this path is reduced. Thus the maximum path loss between any two nodes can be minimized. This in turn means that the link length and also the size of the network is virtually unaffected by using the same transmitter.
REFERENCES:
patent: 5253104 (1993-10-01), Delavaux
patent: 5396357 (1995-03-01), Goossen et al.
patent: 5901260 (1999-05-01), Braun
patent: 6359728 (2002-03-01), Angellieri et al.
patent: 6414768 (2002-07-01), Sakata et al.
patent: H2075 (2003-08-01), Gnauck et al.
patent: 6760151 (2004-07-01), Vail et al.
patent: 6947670 (2005-09-01), Korotky et al.
patent: 05 060930 (1993-03-01), None
patent: WO 98/52314 (1998-11-01), None
patent: WO 98/52314 (1998-11-01), None
patent: WO 99/65165 (1999-12-01), None
patent: 01/01975 (2001-07-01), None
Curs Nathan
Li Shi K.
Telefonaktiebolaget L M Ericsson (Publ)
LandOfFree
Optical communication system with two parallel transmission... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical communication system with two parallel transmission..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical communication system with two parallel transmission... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4030011