公开(公告)号：CA2359446A1

公开(公告)日：2002-04-30

申请号：CA2359446

申请日：2001-10-19

Applicant: LUCENT TECHNOLOGIES INC

Inventor： PRASANNA G N SRINIVASA

IPC: H04B10/02 ,  H04B10/20 ,  H04J14/02 ,  H04L12/42 ,  H04Q11/00 ,  H04B10/00

Abstract: A method and apparatus are disclosed for terminating optical links in an optical network based on performance requirements. The present inventi on forces the termination of the received optical signals at each node only on the protection ring and does not force termination on the working ring, unless necessary to satisfy performance requirements. A signal on an end-to-end lig ht path on the working ring is terminated only when required by engineering rules, such as signal-to-noise requirements. Specifically, the present invention do es not force terminate an end-to-end light path on the working ring at a given node (or on a link between two nodes) unless the signal will fail to meet certain criteria, such as a minimum optical signal-to-noise ratio, at the next node.

公开(公告)号：CA2373959A1

公开(公告)日：2002-09-16

申请号：CA2373959

申请日：2002-02-28

Applicant: LUCENT TECHNOLOGIES INC

Inventor： SHARMA MEENAKSHI ,  HUNSCHE STEFAN ,  NAGARAJAN RAMESH ,  DOSHI BHARAT TARACHAND ,  RAMAN NARAYAN ,  PRASANNA G N SRINIVASA

IPC: H04Q11/00 ,  H04B10/20 ,  H04Q3/52

Abstract: A technique for improving optical cross-connections comprises placing a swit ch in front of a number of processing units. So configured, the units are no longer dedicated to a specific link or signal. When necessary, a unit is connected/disconnect ed to one or more optical links by the switch to carry out any number of processing functions, such as regeneration, Raman pumping, dispersion equalization/compensation or performance monitoring. Because the units are no longer dedicated to specific links the cost of the cross-connections and the network it is a part of can be reduced.