公开(公告)号：EP2335366A1

公开(公告)日：2011-06-22

申请号：EP09820149.4

申请日：2009-10-15

申请人： Ciena Luxembourg S.a.r.l.

发明人： BOERTJES, David ,  ROBERTS, Kim B. ,  O'SULLIVAN, Maurice ,  BORDOGNA, Giuseppe

IPC分类号： H04J14/02 ,  H04Q11/02

CPC分类号： H04Q11/0005 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04Q2011/0015 ,  H04Q2011/0016

摘要： IIn an Optical Add-Drop Multiplexer, a drop section comprises a Wavelength Selective Switch (WSS) having at least one drop-port, the WSS being operative to couple a respective set of w (where w>1) wavelength channels from a received Wavelength Division Multiplexed (WDM) signal to each drop port. A respective 1:s power splitter is associated with each drop port. Each power splitter supplies the respective set of channels received from its drop port to each one of a corresponding set of coherent receivers. Each coherent receiver operates to receive a selected one of the respective set of channels.