Optical communication apparatus, wavelength calibration method, and program
US11095372B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2019 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Feb 21, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0282
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An OLT (2) includes one or more optical receivers (22) configured to receive optical signals of respective different wavelengths obtained by an AWG filter (4) demultiplexing a wavelength-multiplexed signal addressed to the terminal itself, and a supervisory controller (23) configured to transmit, to an ONU (3), a wavelength adjustment instruction to transit a wavelength to be used by an optical transmitter (32) for transmission of an optical signal, to set a difference between an optical received power of an optical signal received by any of the optical receivers (22) and a reference value of the optical received power within a threshold, the ONU (3) being a transmission source of the optical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.