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：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.