Optical fiber amplifier, optical fiber amplifier control method, and transmission system
US11870208B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2019 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Dec 6, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1608
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided are a low-cost and low power-consumption optical fiber amplifier, an optical fiber amplifier control method, and a transmission system. The optical fiber amplifier comprises: an optical fiber to which pumping light is supplied and which amplifies an optical signal, the optical fiber including a plurality of cores in a cladding; a light source which outputs the pumping light; a combining means which supplies the pumping light from the light source to the cladding of the optical fiber and causes the pumping light to be combined with the optical signal; a collect means which collects, without collecting the signal light, pumping light among the supplied pumping light that has not been absorbed by the optical fiber; a monitor means which monitors residual pumping light that has passed through the optical fiber and collected by the collect means; and a control means which controls the state of the pumping light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.