Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2006-07-10
2008-11-04
Pak, Sung (Department: 2874)
Optical waveguides
With optical coupler
Switch
C398S050000
Reexamination Certificate
active
07447398
ABSTRACT:
In working path setting, a backup path is previously prepared assuming a link failure, and a demultiplexer of a bypass link is connected to a wavelength conversion repeater through an optical switch. Upon occurrence of a link failure, the wavelength conversion repeater is connected to a multiplexer of the bypass link by means of the optical switch to forward an in-channel control signal to the wavelength conversion repeater of an adjacent node where the in-channel control signal is sequentially forwarded to reserve a backup bandwidth. Then, output wavelengths and targets are exchanged between a wavelength tunable transponder and the wavelength tunable repeater.
REFERENCES:
patent: 5005166 (1991-04-01), Suzuki et al.
patent: 6862380 (2005-03-01), Chaudhuri et al.
patent: 2003/0198227 (2003-10-01), Matsuura et al.
patent: 2003-209863 (2003-07-01), None
patent: 2003-339064 (2003-11-01), None
patent: 2004-297238 (2004-10-01), None
Fukashiro Yasuyuki
Hirai Tooru
Antonelli, Terry Stout & Kraus, LLP.
Hitachi Communication Technologies Ltd.
Pak Sung
Rahll Jerry T
LandOfFree
Optical crossconnect apparatus 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 crossconnect apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical crossconnect apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4029915