公开(公告)号：US07274871B2

公开(公告)日：2007-09-25

申请号：US10500019

申请日：2001-12-27

申请人： Roberto Avallone ,  Andrea Fregosi ,  Carlo Boidi

发明人： Roberto Avallone ,  Andrea Fregosi ,  Carlo Boidi

IPC分类号： H04B10/08 ,  H04B17/00

CPC分类号： H04B10/2918 ,  H04B10/0777 ,  H04B10/2916 ,  H04B2210/074

摘要： An optical transmission system having a supervisory system of devices disposed along an optical link. Counter-propagating Raman amplifiers are disposed along the optical link. Low-frequency supervisory signals are superimposed on the optical signals traveling on the optical link by suitable modulators in the devices disposed along the line. Counter-propagating Raman amplifiers amplify optical signals and do not introduce a substantial amount of attenuation on the low-frequency supervisory signals.

摘要翻译： 一种光传输系统，具有沿光链路设置的设备的监控系统。 反向传播的拉曼放大器沿光链路放置。 低频监控信号通过在沿线设置的设备中的合适的调制器叠加在光链路上行进的光信号上。 反向传播的拉曼放大器放大光信号，并且不会在低频监控信号上引入大量的衰减。

公开(公告)号：US20050117839A1

公开(公告)日：2005-06-02

申请号：US10500036

申请日：2001-12-27

申请人： Roberto Avallone ,  Andrea Fregosi

发明人： Roberto Avallone ,  Andrea Fregosi

IPC分类号： H04B10/00 ,  H04B10/02 ,  H04B10/077 ,  H04B10/08 ,  H04B10/17 ,  H04B10/291 ,  G02B6/28

CPC分类号： H04B10/2918 ,  H04B10/0777 ,  H04B10/2916 ,  H04B2210/074

摘要： An optical transmission system having a supervisory system of devices disposed along an optical link. Co-propagating Raman amplifiers are disposed along the optical link. Low frequency supervisory signals are superimposed on the optical signals traveling on the optical link by suitable modulators in the devices disposed along the line or by the same co-propagating Raman amplifiers. Regeneration of the supervisory signal is provided in at least one device disposed along the optical link in order to counteract attenuation introduced on the supervisory signal by the co-propagating Raman amplifiers.

摘要翻译： 一种光传输系统，具有沿光链路设置的设备的监控系统。 共同传播的拉曼放大器沿光链路设置。 低频监控信号通过在沿线设置的器件中或通过相同的共同传播的拉曼放大器中的合适的调制器叠加在光链路上行进的光信号上。 在沿着光链路设置的至少一个设备中提供监控信号的再生以便抵消由共同传播的拉曼放大器引入的监控信号上的衰减。

公开(公告)号：US20050078351A1

公开(公告)日：2005-04-14

申请号：US10500019

申请日：2001-12-27

申请人： Roberto Avallone ,  Andrea Fregosi ,  Carlo Boidi

发明人： Roberto Avallone ,  Andrea Fregosi ,  Carlo Boidi

IPC分类号： H04B10/00 ,  H04B10/02 ,  H04B10/077 ,  H04B10/08 ,  H04B10/17 ,  H04B10/291 ,  H01S3/00

CPC分类号： H04B10/2918 ,  H04B10/0777 ,  H04B10/2916 ,  H04B2210/074

摘要： An optical transmission system having a supervisory system of devices disposed along an optical link. Counter-propagating Raman amplifiers are disposed along the optical link. Low-frequency supervisory signals are superimposed on the optical signals traveling on the optical link by suitable modulators in the devices disposed along the line. Counter-propagating Raman amplifiers amplify optical signals and do not introduce a substantial amount of attenuation on the low-frequency supervisory signals.

摘要翻译： 一种光传输系统，具有沿光链路设置的设备的监控系统。 反向传播的拉曼放大器沿光链路放置。 低频监控信号通过在沿线设置的设备中的合适的调制器叠加在光链路上行进的光信号上。 反向传播的拉曼放大器放大光信号，并且不会在低频监控信号上引入大量的衰减。

公开(公告)号：US07254326B2

公开(公告)日：2007-08-07

申请号：US10500036

申请日：2001-12-27

申请人： Roberto Avallone ,  Andrea Fregosi

发明人： Roberto Avallone ,  Andrea Fregosi

IPC分类号： H04B10/08 ,  H04B17/00

CPC分类号： H04B10/2918 ,  H04B10/0777 ,  H04B10/2916 ,  H04B2210/074

摘要： An optical transmission system having a supervisory system of devices disposed along an optical link. Co-propagating Raman amplifiers are disposed along the optical link. Low frequency supervisory signals are superimposed on the optical signals traveling on the optical link by suitable modulators in the devices disposed along the line or by the same co-propagating Raman amplifiers. Regeneration of the supervisory signal is provided in at least one device disposed along the optical link in order to counteract attenuation introduced on the supervisory signal by the co-propagating Raman amplifiers.

摘要翻译： 一种光传输系统，具有沿光链路设置的设备的监控系统。 共同传播的拉曼放大器沿光链路设置。 低频监控信号通过在沿线设置的器件中或通过相同的共同传播的拉曼放大器中的合适的调制器叠加在光链路上行进的光信号上。 在沿着光链路设置的至少一个设备中提供监控信号的再生以便抵消由共同传播的拉曼放大器引入的监控信号上的衰减。