公开(公告)号：US20160164248A1

公开(公告)日：2016-06-09

申请号：US15044730

申请日：2016-02-16

Applicant: Cisco Technology, Inc.

Inventor： Enrico Griseri ,  Enrico Self ,  Mauro Brunella

IPC: H01S3/30 ,  H04B10/079 ,  H04B10/291 ,  H04J14/02 ,  H01S3/067 ,  H01S3/094

CPC classification number: H01S3/302 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094096 ,  H01S3/10069 ,  H01S2301/02 ,  H04B10/07955 ,  H04B10/2916 ,  H04B10/2933 ,  H04J14/0221

Abstract: Techniques are presented herein to set power levels for multiple Raman pump wavelengths in a distributed Raman amplification configuration. A first receive power measurement is obtained at a second node with a controlled optical source at a first node turned on and with a plurality of Raman pump lasers at different wavelengths at the second node turned off. A second receive power measurement is obtained at the second node with the controlled optical source at the first node turned on and the plurality of Raman pump lasers turned on to respective reference power levels to inject optical Raman pump power at a corresponding plurality of wavelengths into the optical fiber span. Based on a target Raman gain and a target Raman gain tilt, respective ratios of a total power are obtained, each ratio to be used for a corresponding one of the plurality of Raman pump lasers.

Abstract translation: 本文提出了技术来设置分布式拉曼放大配置中多个拉曼泵浦波长的功率水平。 第一接收功率测量在第二节点处获得，其中第一节点处于受控光源并且第二节点处的多个拉曼泵浦激光器处于不同波长处。 在第二节点处获得第二接收功率测量，其中第一节点处的受控光源被接通，并且多个拉曼泵激光器接通到相应的参考功率电平，以将相应多个波长的光拉曼泵功率注入到 光纤跨度 基于目标拉曼增益和目标拉曼增益倾斜，获得总功率的各自的比率，用于多个拉曼泵浦激光器中的相应一个的每个比率。

公开(公告)号：US09455546B2

公开(公告)日：2016-09-27

申请号：US14601570

申请日：2015-01-21

Applicant: Cisco Technology, Inc.

Inventor： Enrico Griseri ,  Mauro Brunella ,  Rosanna Pastorelli ,  Stefano Piciaccia

IPC: H01S3/00 ,  H01S3/13 ,  H01S3/30 ,  H01S3/131 ,  H04B10/079 ,  H04J14/02

CPC classification number: H01S3/1301 ,  H01S3/094096 ,  H01S3/10069 ,  H01S3/1305 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/0797 ,  H04B10/2916 ,  H04B10/293 ,  H04J14/0221

Abstract: An optical fiber carries optical channels injected into the optical fiber to a Raman amplifier. A controller determines a static tilt associated with the channels in the fiber due to wavelength dependent losses. A photodiode measures a total power of the channels at an output of the Raman amplifier. The controller determines a dynamic tilt associated with channels in the fiber based in part on the measured total power. The dynamic tilt is induced by Stimulated Raman Scattering (SRS) in the fiber and varies as a function of a total power of the signals injected into the fiber. The controller determines a total tilt with which to offset the static and dynamic tilts. The controller sets an amplifier gain tilt applied to the channels equal to the total tilt.

Abstract translation: 光纤将注入光纤的光通道传送到拉曼放大器。 由于波长相关的损失，控制器确定与光纤中的通道相关联的静态倾斜。 光电二极管测量拉曼放大器输出端的通道总功率。 部分地基于测量的总功率，控制器确定与光纤中的信道相关联的动态倾斜。 动态倾斜由纤维中的受激拉曼散射（SRS）引起，并且随着注入光纤的信号的总功率的变化而变化。 控制器确定用于抵消静态和动态倾斜的总倾斜度。 控制器设置施加到等于总倾斜的通道的放大器增益倾斜。

公开(公告)号：US20150085350A1

公开(公告)日：2015-03-26

申请号：US14037794

申请日：2013-09-26

Applicant: Cisco Technology, Inc.

Inventor： Enrico Griseri ,  Enrico Self ,  Mauro Brunella

IPC: H01S3/30

CPC classification number: H01S3/302 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094096 ,  H01S3/10069 ,  H01S2301/02 ,  H04B10/07955 ,  H04B10/2916 ,  H04B10/2933 ,  H04J14/0221

Abstract: Techniques are presented herein to set power levels for multiple Raman pump wavelengths in a distributed Raman amplification configuration. A first receive power measurement is obtained at a second node with a controlled optical source at a first node turned on and with a plurality of Raman pump lasers at different wavelengths at the second node turned off. A second receive power measurement is obtained at the second node with the controlled optical source at the first node turned on and the plurality of Raman pump lasers turned on to respective reference power levels to inject optical Raman pump power at a corresponding plurality of wavelengths into the optical fiber span. Based on a target Raman gain and a target Raman gain tilt, respective ratios of a total power are obtained, each ratio to be used for a corresponding one of the plurality of Raman pump lasers.

Abstract translation: 本文提出了技术来设置分布式拉曼放大配置中多个拉曼泵浦波长的功率水平。 第一接收功率测量在第二节点处获得，其中第一节点处于受控光源并且第二节点处的多个拉曼泵浦激光器处于不同波长处。 在第二节点处获得第二接收功率测量，其中第一节点处的受控光源被接通，并且多个拉曼泵激光器接通到相应的参考功率电平，以将相应多个波长的光拉曼泵功率注入到 光纤跨度 基于目标拉曼增益和目标拉曼增益倾斜，获得总功率的各自的比率，用于多个拉曼泵浦激光器中的相应一个的每个比率。

公开(公告)号：US09577403B2

公开(公告)日：2017-02-21

申请号：US15044730

申请日：2016-02-16

Applicant: Cisco Technology, Inc.

Inventor： Enrico Griseri ,  Enrico Self ,  Mauro Brunella

IPC: H01S3/067 ,  H01S3/30 ,  H04B10/29 ,  H04B10/07 ,  H04J14/02 ,  H04B10/291 ,  H04B10/293 ,  H01S3/094 ,  H04B10/079 ,  H01S3/10

CPC classification number: H01S3/302 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094096 ,  H01S3/10069 ,  H01S2301/02 ,  H04B10/07955 ,  H04B10/2916 ,  H04B10/2933 ,  H04J14/0221

Abstract: Techniques are presented herein to set power levels for multiple Raman pump wavelengths in a distributed Raman amplification configuration. A first receive power measurement is obtained at a second node with a controlled optical source at a first node turned on and with a plurality of Raman pump lasers at different wavelengths at the second node turned off. A second receive power measurement is obtained at the second node with the controlled optical source at the first node turned on and the plurality of Raman pump lasers turned on to respective reference power levels to inject optical Raman pump power at a corresponding plurality of wavelengths into the optical fiber span. Based on a target Raman gain and a target Raman gain tilt, respective ratios of a total power are obtained, each ratio to be used for a corresponding one of the plurality of Raman pump lasers.

Abstract translation: 本文提出了技术来设置分布式拉曼放大配置中多个拉曼泵浦波长的功率水平。 第一接收功率测量在第二节点处获得，其中第一节点处于受控光源并且第二节点处的多个拉曼泵浦激光器处于不同波长处。 在第二节点处获得第二接收功率测量，其中第一节点处的受控光源被接通，并且多个拉曼泵激光器接通到相应的参考功率电平，以将相应多个波长的光拉曼泵功率注入到 光纤跨度 基于目标拉曼增益和目标拉曼增益倾斜，获得总功率的各自的比率，用于多个拉曼泵浦激光器中的相应一个的每个比率。

公开(公告)号：US20160211643A1

公开(公告)日：2016-07-21

申请号：US14601570

申请日：2015-01-21

Applicant: Cisco Technology, Inc.

Inventor： Enrico Griseri ,  Mauro Brunella ,  Rosanna Pastorelli ,  Stefano Piciaccia

IPC: H01S3/13 ,  H04J14/02 ,  H04B10/079 ,  H01S3/30 ,  H01S3/131

CPC classification number: H01S3/1301 ,  H01S3/094096 ,  H01S3/10069 ,  H01S3/1305 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/0797 ,  H04B10/2916 ,  H04B10/293 ,  H04J14/0221

Abstract: An optical fiber carries optical channels injected into the optical fiber to a Raman amplifier. A controller determines a static tilt associated with the channels in the fiber due to wavelength dependent losses. A photodiode measures a total power of the channels at an output of the Raman amplifier. The controller determines a dynamic tilt associated with channels in the fiber based in part on the measured total power. The dynamic tilt is induced by Stimulated Raman Scattering (SRS) in the fiber and varies as a function of a total power of the signals injected into the fiber. The controller determines a total tilt with which to offset the static and dynamic tilts. The controller sets an amplifier gain tilt applied to the channels equal to the total tilt.

Abstract translation: 光纤将注入光纤的光通道传送到拉曼放大器。 由于波长相关的损失，控制器确定与光纤中的通道相关联的静态倾斜。 光电二极管测量拉曼放大器输出端的通道总功率。 部分地基于测量的总功率，控制器确定与光纤中的信道相关联的动态倾斜。 动态倾斜由纤维中的受激拉曼散射（SRS）引起，并且随着注入光纤的信号的总功率的变化而变化。 控制器确定用于抵消静态和动态倾斜的总倾斜度。 控制器设置施加到等于总倾斜的通道的放大器增益倾斜。

公开(公告)号：US09300110B2

公开(公告)日：2016-03-29

申请号：US14037794

申请日：2013-09-26

Applicant: Cisco Technology, Inc.

Inventor： Enrico Griseri ,  Enrico Self ,  Mauro Brunella

IPC: H04B10/29 ,  H01S3/30 ,  H04B10/291 ,  H04B10/293 ,  H01S3/067 ,  H01S3/094 ,  H01S3/10

CPC classification number: H01S3/302 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094096 ,  H01S3/10069 ,  H01S2301/02 ,  H04B10/07955 ,  H04B10/2916 ,  H04B10/2933 ,  H04J14/0221

Abstract: Techniques are presented herein to set power levels for multiple Raman pump wavelengths in a distributed Raman amplification configuration. A first receive power measurement is obtained at a second node with a controlled optical source at a first node turned on and with a plurality of Raman pump lasers at different wavelengths at the second node turned off. A second receive power measurement is obtained at the second node with the controlled optical source at the first node turned on and the plurality of Raman pump lasers turned on to respective reference power levels to inject optical Raman pump power at a corresponding plurality of wavelengths into the optical fiber span. Based on a target Raman gain and a target Raman gain tilt, respective ratios of a total power are obtained, each ratio to be used for a corresponding one of the plurality of Raman pump lasers.

Abstract translation: 本文提出了技术来设置分布式拉曼放大配置中多个拉曼泵浦波长的功率水平。 第一接收功率测量在第二节点处获得，其中第一节点处于受控光源并且第二节点处的多个拉曼泵浦激光器处于不同波长处。 在第二节点处获得第二接收功率测量，其中第一节点处的受控光源被接通，并且多个拉曼泵激光器接通到相应的参考功率电平，以将相应多个波长的光拉曼泵功率注入到 光纤跨度 基于目标拉曼增益和目标拉曼增益倾斜，获得总功率的各自的比率，用于多个拉曼泵浦激光器中的相应一个的每个比率。