Optical multiplexer and optical multiplexing method
US12050342B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2021 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Feb 5, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/125
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical multiplexer and an optical multiplexing method capable of multiplexing light of four or more types of wavelengths are provided. An optical multiplexer capable of multiplexing light of a plurality of wavelengths includes a plurality of coupling parts each including a pair of main entrance paths, a pair of main exit paths, and a main coupler arranged between the main entrance paths and the main exit paths, the main coupler causing light entering from the main entrance paths to be coupled and exit from the main exit paths, in which one of the main entrance paths of the coupling parts is joined to one of the main exit paths of anther coupling parts and the main coupler has coupling length different from at least one other main coupler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.