公开(公告)号：US09106333B2

公开(公告)日：2015-08-11

申请号：US13894767

申请日：2013-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Degang Zhong ,  Zebin Li ,  Changliang Yu ,  Shengping Li

IPC: H04B10/08 ,  H04B17/00 ,  H04B10/07 ,  H04B10/071

CPC classification number: H04B10/07 ,  H04B10/071

Abstract: A method for testing an optical fiber includes: receiving a test optical signal from an optical fiber network, and converting the test optical signal into a test current signal; receiving, by a transimpedance amplifier, the test current signal by using a first working mode and outputting a first test voltage signal; acquiring a swing of the first test voltage signal, and determining whether the swing of the first test voltage signal meets a preset condition; and receiving, by the transimpedance amplifier, the test current signal by using a second working mode and outputting a second test voltage signal when the swing of the first test voltage signal meets the preset condition, where an upper limit and a lower limit of a receiver dynamic range when the transimpedance amplifier works in the first working mode are different from those when the transimpedance amplifier works in the second working mode.

Abstract translation: 一种用于测试光纤的方法包括：从光纤网络接收测试光信号，并将测试光信号转换成测试电流信号; 通过使用第一工作模式通过跨阻抗放大器接收测试电流信号并输出​​第一测试电压信号; 获取所述第一测试电压信号的摆幅，并且确定所述第一测试电压信号的摆幅是否满足预设条件; 并且通过所述跨阻放大器通过使用第二工作模式接收所述测试电流信号，并且当所述第一测试电压信号的摆幅满足所述预设条件时，输出第二测试电压信号，其中接收器的上限和下限 当跨阻放大器工作在第一工作模式时的动态范围与跨阻放大器工作在第二工作模式时的动态范围不同。

公开(公告)号：US20130259470A1

公开(公告)日：2013-10-03

申请号：US13894767

申请日：2013-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Degang Zhong ,  Zebin Li ,  Changliang Yu ,  Shengping Li

IPC: H04B10/07

CPC classification number: H04B10/07 ,  H04B10/071

Abstract: A method for testing an optical fiber includes: receiving a test optical signal from an optical fiber network, and converting the test optical signal into a test current signal; receiving, by a transimpedance amplifier, the test current signal by using a first working mode and outputting a first test voltage signal; acquiring a swing of the first test voltage signal, and determining whether the swing of the first test voltage signal meets a preset condition; and receiving, by the transimpedance amplifier, the test current signal by using a second working mode and outputting a second test voltage signal when the swing of the first test voltage signal meets the preset condition, where an upper limit and a lower limit of a receiver dynamic range when the transimpedance amplifier works in the first working mode are different from those when the transimpedance amplifier works in the second working mode.

Abstract translation: 一种用于测试光纤的方法包括：从光纤网络接收测试光信号，并将测试光信号转换成测试电流信号; 通过使用第一工作模式通过跨阻抗放大器接收测试电流信号并输出​​第一测试电压信号; 获取所述第一测试电压信号的摆幅，并且确定所述第一测试电压信号的摆幅是否满足预设条件; 并且通过所述跨阻放大器通过使用第二工作模式接收所述测试电流信号，并且当所述第一测试电压信号的摆幅满足所述预设条件时，输出第二测试电压信号，其中接收器的上限和下限 当跨阻放大器工作在第一工作模式时的动态范围与跨阻放大器工作在第二工作模式时的动态范围不同。