Wavelength division multiplexing structure
US12177002B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 28, 2021 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Oct 7, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2938
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wavelength division multiplexing structure comprises a first wavelength division multiplexer and a second wavelength division multiplexer, each comprises N filtering units, a branch side interface connected to each filtering units, and a line side interface, N being a positive integer; each filtering unit corresponds to one central wavelength; the line side interface of the first wavelength division multiplexer and that of the second wavelength division multiplexer are connected by an optical fiber; the N filtering units are divided into multiple filtering unit groups, and the multiple filtering unit groups are cascaded in series or cascaded in a series-parallel combination; filter units in each filtering unit group are cascaded in series; and a cascade mode and/or cascade position corresponding to each filter unit in the first wavelength division multiplexer and the second wavelength division multiplexer is at least related to the center wavelengths corresponding to the filter unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.