| 发明名称 | Raman fiber amplifier and its control via path switching | ||
| 摘要 | An amplifying-apparatus that raman-amplifies light transmitted through an optical-fiber-transmission-path, includes: an inputting-unit that inputs pump light to the optical-fiber-transmission-path; a path-switching-unit that is capable of switching between a first state in which the light transmitted through the optical-fiber-transmission-path is output to a first path and a second state in which the light transmitted through the optical-fiber-transmission-path is output to a second path; a splitting-unit that splits the light output to the second path by the path-switching-unit and outputs resulting first light and second light; and a control-circuit that stores information based on a result of reception of the light output to the first path by putting the path-switching-unit into the first state and then controls power of the pump light on a basis of the stored information and a result of reception of the first light output by the splitting-unit by putting the path-switching-unit into the second state. | ||
| 申请公布号 | US9042005(B2) | 申请公布日期 | 2015.05.26 |
| 申请号 | US201313893461 | 申请日期 | 2013.05.14 |
| 申请人 | FUJITSU LIMITED | 发明人 | Muro Shinichirou;Takeyama Tomoaki |
| 分类号 | H01S3/30;H04B10/17;H01S3/067;H01S3/13;H04B10/291;H04B10/12;H01S3/094;H01S3/0941;H01S3/10;H01S3/16 | 主分类号 | H01S3/30 |
| 代理机构 | Staas & Halsey LLP | 代理人 | Staas & Halsey LLP |
| 主权项 | 1. An amplifying apparatus that raman-amplifies light transmitted through an optical-fiber transmission path, the amplifying apparatus comprising: an inputting unit that inputs pump light to the optical-fiber transmission path; a path switching unit that is capable of switching between a first state in which the light transmitted through the optical-fiber transmission path is output to a first path and a second state in which the light transmitted through the optical-fiber transmission path is output to a second path; a splitting unit that splits the light output to the second path by the path switching unit and outputs resulting first light and second light; and a control circuit that stores information based on a result of reception of the light output to the first path by putting the path switching unit into the first state and then controls power of the pump light on a basis of the stored information and a result of reception of the first light output by the splitting unit by putting the path switching unit into the second state. | ||
| 地址 | Kawasaki JP | ||