| 发明名称 | Optical transmitting device, fault determining method and fault diagnosis system | ||
| 摘要 | An optical transmitting device includes: a light source; an optical modulator configured to modulate light from the light source based on an electric signal corresponding to transmission data, and output an optical signal based on the electric signal; a measuring section configured to measure power of the optical signal in each of measurement bands which are different from with each other and narrower than a frequency band of the modulated optical signal; a determining section configured to determine whether or not the measured power is within a power range in each of the measurement bands; and an output section configured to output fault information indicating a fault in the optical modulator when the measured power is not within the power range. | ||
| 申请公布号 | US9520938(B2) | 申请公布日期 | 2016.12.13 |
| 申请号 | US201514682449 | 申请日期 | 2015.04.09 |
| 申请人 | FUJITSU LIMITED | 发明人 | Tsurumi Tsutomu |
| 分类号 | H04B10/50;H04B10/079 | 主分类号 | H04B10/50 |
| 代理机构 | Staas & Halsey LLP | 代理人 | Staas & Halsey LLP |
| 主权项 | 1. An optical transmitting device comprising: a light source; an optical modulator configured to modulate light from the light source based on an electric signal corresponding to transmission data, and output an optical signal based on the electric signal; a measuring section configured to measure power of the optical signal in each of measurement bands which are different from with each other and narrower than a frequency band of the modulated optical signal; a determining section configured to determine whether or not the measured power is within a power range in each of the measurement bands; and an output section configured to output fault information indicating a fault in the optical modulator when the measured power is not within the power range. | ||
| 地址 | Kawasaki JP | ||