公开(公告)号：US20140117200A1

公开(公告)日：2014-05-01

申请号：US14147381

申请日：2014-01-03

Applicant: Cisco Technology, Inc.

Inventor： Soeren Gehrke ,  Theodor Kupfer ,  James Whiteaway

IPC: G01J1/04 ,  G01J1/18

CPC classification number: G01J1/0418 ,  G01J1/18 ,  H04B10/07955 ,  H04B10/0799 ,  H04B10/61

Abstract: A system configured to maintain a consistent local-oscillator-power-to-primary-signal-power ratio (LO/SIG ratio). The system may be configured to: receive the voltages for a plurality of optical signal components split from a combined SIG and LO signal; determine individual factors for the plurality of optical signal components; average the individual factors; determine whether the averaged output is less than an existing minimum reference value for a variable optical attenuator; determine whether the averaged output is greater than an existing maximum reference value for the variable optical attenuator; change the existing minimum reference value to a new value associated with the averaged output, due to determining that the averaged output is less than the existing minimum reference value; change the existing maximum reference value to a new value associated with the averaged output, due to determining that the averaged output is greater than the existing maximum reference value; and change a new value associated with the averaged output to be transmitted to the variable optical attenuator.

Abstract translation: 一种被配置为保持本地振荡器一致信号功率比（LO / SIG比率）一致的系统。 该系统可以被配置为：接收从组合的SIG和LO信号分离的多个光信号分量的电压; 确定所述多个光信号分量的各个因素; 平均个别因素; 确定平均输出是否小于可变光衰减器的现有最小参考值; 确定平均输出是否大于可变光衰减器的现有最大参考值; 由于确定平均输出小于现有最小参考值，将现有最小参考值更改为与平均输出相关联的新值; 由于确定平均输出大于现有的最大参考值，将现有最大参考值改变为与平均输出相关联的新值; 并且将与要发送的平均输出相关联的新值改变为可变光衰减器。

公开(公告)号：US09285267B2

公开(公告)日：2016-03-15

申请号：US14147381

申请日：2014-01-03

Applicant: Cisco Technology, Inc.

Inventor： Soeren Gehrke ,  Theodor Kupfer ,  James Whiteaway

IPC: H04B10/06 ,  G01J1/04 ,  H04B10/079 ,  H04B10/61 ,  G01J1/18

CPC classification number: G01J1/0418 ,  G01J1/18 ,  H04B10/07955 ,  H04B10/0799 ,  H04B10/61

Abstract: A system configured to maintain a consistent local-oscillator-power-to-primary-signal-power ratio (LO/SIG ratio). The system may be configured to: receive the voltages for a plurality of optical signal components split from a combined SIG and LO signal; determine individual factors for the plurality of optical signal components; average the individual factors; determine whether the averaged output is less than an existing minimum reference value for a variable optical attenuator; determine whether the averaged output is greater than an existing maximum reference value for the variable optical attenuator; change the existing minimum reference value to a new value associated with the averaged output, due to determining that the averaged output is less than the existing minimum reference value; change the existing maximum reference value to a new value associated with the averaged output, due to determining that the averaged output is greater than the existing maximum reference value; and change a new value associated with the averaged output to be transmitted to the variable optical attenuator.

Abstract translation: 一种被配置为保持本地振荡器一致信号功率比（LO / SIG比率）一致的系统。 该系统可以被配置为：接收从组合的SIG和LO信号分离的多个光信号分量的电压; 确定所述多个光信号分量的各个因素; 平均个别因素; 确定平均输出是否小于可变光衰减器的现有最小参考值; 确定平均输出是否大于可变光衰减器的现有最大参考值; 由于确定平均输出小于现有最小参考值，将现有最小参考值更改为与平均输出相关联的新值; 由于确定平均输出大于现有的最大参考值，将现有最大参考值改变为与平均输出相关联的新值; 并且将与要发送的平均输出相关联的新值改变为可变光衰减器。