| 发明名称 | Method and apparatus for detection of failure of an optical amplifier | ||
| 摘要 | An apparatus and method of failure detection in optical amplifier is disclosed. The optical amplifier includes an optical amplifying fiber configured to receive input light so that the input light travels through the optical amplifying fiber, an excitation light generator configured to supply excitation light to the optical amplifying fiber to optically amplify the input light as the input light travels through the optical amplifying fiber, and a processor configured to determine whether a failure has occurred in the optical amplifier, based on a change in power of the excitation light and a change in power of the input light. | ||
| 申请公布号 | US9190801(B2) | 申请公布日期 | 2015.11.17 |
| 申请号 | US201314056509 | 申请日期 | 2013.10.17 |
| 申请人 | FUJITSU LIMITED | 发明人 | Itoh Hiroyuki |
| 分类号 | H01S3/067;H01S3/10;H01S3/13;H01S3/00;H04B10/079;H04B10/291;H01S3/0941;H01S5/0683 | 主分类号 | H01S3/067 |
| 代理机构 | Staas & Halsey LLP | 代理人 | Staas & Halsey LLP |
| 主权项 | 1. An apparatus, comprising: an optical amplifying fiber configured to receive input light so that the input light travels through the optical amplifying fiber; an excitation light generator configured to supply excitation light to the optical amplifying fiber to optically amplify the input light as the input light travels through the optical amplifying fiber; and a processor configured to: determine whether a failure has occurred in the optical amplifier, based on a change in power of the excitation light and a change in power of the input light,determine whether the failure has occurred in the optical amplifier, based on a result obtained by determining whether, when an amount of the change in power of the excitation light exceeds a first threshold, an amount of the change in power of the input light is smaller than a second threshold in a past predetermined time period. | ||
| 地址 | Kawasaki JP | ||