Optical receiver module, optical receiving method, optical line terminal, PON system, and optical filter
US11095375B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2018 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Jun 6, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/69
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical receiver module which receives a first optical signal including a continuous signal or a burst signal includes: a variable optical attenuator which adjusts the first optical signal to output a second optical signal; a semiconductor optical amplifier which amplifies the second optical signal to output a third optical signal; and a controller which controls an output of at least one of the variable optical attenuator and the semiconductor optical amplifier so as to cause the semiconductor optical amplifier to operate in a region in which gain saturation of the semiconductor optical amplifier does not occur, on the basis of at least one of: a power obtained by suppressing an outside portion of the wavelength band of the first optical signal in the third optical signal; and a power obtained by extracting the outside portion of the wavelength band of the first optical signal in the third optical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.