Optical communication system and protection method for optical communication system
US12191905B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2020 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Jan 19, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0287
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The optical communication system includes the optical distribution device (100) provided between the wavelength routing device (30) and the optical multiplexing/demultiplexing device (40). The wavelength routing device outputs the optical signal input from the port on the wavelength variable subscriber device side to the port uniquely determined by a combination of the wavelength of the optical signal and the port to which the optical signal is inputted. The wavelength variable subscriber device can execute the first protection for switching the wavelength of the optical signal to be transmitted and received to the spare wavelength different from the operating wavelength when the wavelength variable subscriber device and the wavelength variable communication device (10) are disconnected. Then, the optical distribution device can execute the second protection for switching the optical fiber transmission path (50) to be used when the wavelength variable subscriber device and the wavelength variable communication device are disconnected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.