公开(公告)号：DE602005000298T2

公开(公告)日：2007-07-05

申请号：DE602005000298

申请日：2005-07-20

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KILPER DANIEL CHARLES ,  RAGHAVAN NARASIMHAN ,  RICHEY ELIZABETH O ,  TAEGER SYDNEY A ,  WHITE CHRISTOPHER ALAN

IPC: H04J14/02 ,  H04B10/17 ,  H04B10/29

Abstract: A channel-growth plan for an optical transmission system selects channels such that the transients that result in the channels that survive a network failure, such as an upstream fiber cut, are either minimized or effectively handled by some transient-control technique. In one embodiment, the growth plan may try to keep post-transient surviving channel total power gain equal to the pre-transient total power gain. Alternatively, the growth plan may try to distribute the surviving channels uniformly over the pre-transient channel-frequency range. Other manifestations are to keep (1) the average power of the surviving channels substantially equal to the average power of the pre-transient channels or (2) the average power of the post-transient surviving channels substantially equal to the power level of a specified channel. Transient-control can be balanced with conventional low-cost and high-performance goals to provide an effective hybrid channel-growth plan.

公开(公告)号：DE602005000298D1

公开(公告)日：2007-01-11

申请号：DE602005000298

申请日：2005-07-20

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KILPER DANIEL CHARLES ,  RAGHAVAN NARASIMHAN ,  RICHEY ELIZABETH O ,  TAEGER SYDNEY A ,  WHITE CHRISTOPHER ALAN

IPC: H04J14/02 ,  H04B10/17 ,  H04B10/29

Abstract: A channel-growth plan for an optical transmission system selects channels such that the transients that result in the channels that survive a network failure, such as an upstream fiber cut, are either minimized or effectively handled by some transient-control technique. In one embodiment, the growth plan may try to keep post-transient surviving channel total power gain equal to the pre-transient total power gain. Alternatively, the growth plan may try to distribute the surviving channels uniformly over the pre-transient channel-frequency range. Other manifestations are to keep (1) the average power of the surviving channels substantially equal to the average power of the pre-transient channels or (2) the average power of the post-transient surviving channels substantially equal to the power level of a specified channel. Transient-control can be balanced with conventional low-cost and high-performance goals to provide an effective hybrid channel-growth plan.