发明名称 |
Method and apparatus for testing optical fiber and passive optical network system |
摘要 |
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. |
申请公布号 |
US9106333(B2) |
申请公布日期 |
2015.08.11 |
申请号 |
US201313894767 |
申请日期 |
2013.05.15 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
Zhong Degang;Li Zebin;Yu Changliang;Li Shengping |
分类号 |
H04B10/08;H04B17/00;H04B10/07;H04B10/071 |
主分类号 |
H04B10/08 |
代理机构 |
Brinks Gilson & Lione |
代理人 |
Brinks Gilson & Lione |
主权项 |
1. A method for testing an optical fiber, comprising:
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, wherein 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. |
地址 |
Shenzhen CN |