Optical communications – Diagnostic testing – Determination of communication parameter
Reexamination Certificate
2011-03-29
2011-03-29
Vanderpuye, Ken N (Department: 2613)
Optical communications
Diagnostic testing
Determination of communication parameter
C398S015000, C398S038000
Reexamination Certificate
active
07917030
ABSTRACT:
A WDM fiber optic communication system is operative to transmit WDM signals between multiple nodes. Each node has a booster EDFA, and in-band and out-of-band supervisory channels monitoring the integrity of a link by generating and detecting respective in-band and out-of-band control signals. The booster EDFA receives the multiplexed WDM and IB signals and generates an output signal carried by fibers between the nodes. The booster EDFA switches from an automatic gain control regime upon detecting of at least one of the IB and OB control signals to an automatic power control regime upon loss of both IB and OB control signals. The output signal of the EDFA in the AGC regime has a high power sufficient for transmitting the WDM and IB signals, and has a low power in the APC regime sufficient for transmitting only the IB control signal.
REFERENCES:
patent: 6292289 (2001-09-01), Sugaya et al.
patent: 6433903 (2002-08-01), Barry et al.
patent: 6441951 (2002-08-01), Tanaka et al.
patent: 6466348 (2002-10-01), Izumi
patent: 6563614 (2003-05-01), Stephens et al.
patent: 6603596 (2003-08-01), Inagaki et al.
patent: 6757099 (2004-06-01), Pavel et al.
patent: 6961522 (2005-11-01), Castagnetti et al.
patent: 7116471 (2006-10-01), Ghera et al.
patent: 7146100 (2006-12-01), Osaka
patent: 7444078 (2008-10-01), Stango et al.
patent: 7542678 (2009-06-01), Raddatz
patent: 7657187 (2010-02-01), Shimizu
patent: 2004/0201882 (2004-10-01), Kikuchi
patent: 2004/0208519 (2004-10-01), Feldman et al.
patent: 2005/0024712 (2005-02-01), Hiraizumi et al.
patent: 2005/0063700 (2005-03-01), Shin et al.
patent: 2005/0089325 (2005-04-01), Shan
patent: 2006/0147205 (2006-07-01), Raddatz
patent: 2007/0058242 (2007-03-01), Zhou et al.
Bu-Abbud George
Mornatta Cristiano
Reeves-Hall Peter
Samartsev Igor
Leung Danny W
Vanderpuye Ken N
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