公开(公告)号：EP1624604A1

公开(公告)日：2006-02-08

申请号：EP05254497.0

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

CPC classification number: H04J14/0227 ,  H04B10/296 ,  H04J14/0241 ,  H04J14/0278

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.

Abstract translation: 在光传输系统对于A通道的增长计划选择检查通道做的瞬变确实导致通道那样生存网络故障，：如上游光纤切断，被最小化或有效地要么通过一些瞬态控制技术处理。 在一中，实施增长计划可能会尝试保持后短暂的生存通道总功率增益等于预先瞬态总功率增益。 可替换地，增长计划可能会尝试均匀地在预瞬时信道的频率范围内分布幸存通道。 其他表现形式是，以保持：（1）存活信道的平均功率基本等于预瞬时信道或的平均功率（2）平均功率的瞬态后存活信道的基本上等于指定的功率电平 通道。 瞬态控制可以与常规的低成本和高性能的目标进行平衡，以提供有效的混合通道增长计划。

公开(公告)号：EP1622299A2

公开(公告)日：2006-02-01

申请号：EP05254498.8

申请日：2005-07-20

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Kilper, Daniel Charles ,  Martell, Claude A. ,  Raghavan, Narasimhan ,  Sadler, David A. ,  White, Christopher Alan

IPC: H04J14/02

CPC classification number: H04J14/0221 ,  H04B10/2916 ,  H04B10/296 ,  H04J14/0201 ,  H04J14/0208 ,  H04J14/0213

Abstract: In an optical transmission system, operations of certain elements are adjusted in an individualized manner after detecting a change in the total optical power level corresponding to multiple optical channels in a link of the system in order to control transients in those channels. For example, in response to a sudden drop in the number of channels resulting from a fiber cut, the power levels of the optical pumps in a Raman amplifier in an OADM are adjusted to reduce transient gain errors in the surviving channels, where the adjustment to the pump power level for each different optical pump is a function of both the detected change in the total optical power level and at least one specified coefficient for that particular optical pump, in order to handle non-linearities in the response of the Raman amplifier to the sudden drop in the number of optical channels.

Abstract translation: 在光传输系统中，为了控制这些信道中的瞬变，在检测到与系统链路中的多个光信道相对应的总光功率电平的变化之后，以个性化方式调整某些元件的操作。 例如，响应于光纤切割导致的通道数量突然下降，OADM中的拉曼放大器中的光泵的功率水平被调整以减少存活通道中的瞬态增益误差，其中对 每个不同光泵的泵功率水平是检测到的总光功率水平的变化和该特定光泵的至少一个指定系数的函数，以便处理拉曼放大器响应中的非线性 光通道数量突然下降。

公开(公告)号：EP1624604B1

公开(公告)日：2006-11-29

申请号：EP05254497.0

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

CPC classification number: H04J14/0227 ,  H04B10/296 ,  H04J14/0241 ,  H04J14/0278

公开(公告)号：EP1622299B1

公开(公告)日：2008-08-27

申请号：EP05254498.8

申请日：2005-07-20

Applicant: Lucent Technologies Inc.

Inventor： Kilper, Daniel Charles ,  Martell, Claude A. ,  Raghavan, Narasimhan ,  Sadler, David A. ,  White, Christopher Alan

IPC: H04J14/02 ,  H04B10/17

CPC classification number: H04J14/0221 ,  H04B10/2916 ,  H04B10/296 ,  H04J14/0201 ,  H04J14/0208 ,  H04J14/0213

公开(公告)号：EP1622299A3

公开(公告)日：2006-02-08

申请号：EP05254498.8

申请日：2005-07-20

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Kilper, Daniel Charles ,  Martell, Claude A. ,  Raghavan, Narasimhan ,  Sadler, David A. ,  White, Christopher Alan

IPC: H04J14/02 ,  H04B10/17

CPC classification number: H04J14/0221 ,  H04B10/2916 ,  H04B10/296 ,  H04J14/0201 ,  H04J14/0208 ,  H04J14/0213

Abstract: In an optical transmission system, operations of certain elements are adjusted in an individualized manner after detecting a change in the total optical power level corresponding to multiple optical channels in a link of the system in order to control transients in those channels. For example, in response to a sudden drop in the number of channels resulting from a fiber cut, the power levels of the optical pumps in a Raman amplifier in an OADM are adjusted to reduce transient gain errors in the surviving channels, where the adjustment to the pump power level for each different optical pump is a function of both the detected change in the total optical power level and at least one specified coefficient for that particular optical pump, in order to handle non-linearities in the response of the Raman amplifier to the sudden drop in the number of optical channels.