Optical mode converter for coupling between waveguides with different mode size
US11287577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2019 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Jun 20, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical mode converter for coupling between photonic integrated circuit (PIC) and optical fiber of different mode sizes is illustrated. The optical mode converter includes a waveguide assembly including a Single waveguide structure, a Multi-layer waveguide structure, and a Transitional waveguide structure. The Single waveguide structure includes a single waveguide. The dimension and propagation constant of a first end, of the single waveguide, is similar to a waveguide of a photonic integrated circuit (PIC). Furthermore, the Multi-layer waveguide structure included a multi-layer waveguide. Further, the Transitional waveguide structure is formed at a transitional structure. The Transitional waveguide structure allows transition of an optical mode between the Single waveguide structure and Multi-layer waveguide structure. The Multi-layer waveguide structure is configured for coupling light between the Transitional waveguide structure and an optical fiber and the Single waveguide structure is configured for coupling the light between the PIC and the Transitional waveguide structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.