Integrated waveguide polarizer
US11579367B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Feb 10, 2021 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | May 23, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12116
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An integrated waveguide polarizer comprising: a plurality of silicon layers and a plurality of silicon-nitride layers; each of the plurality of silicon layers and each of the plurality of silicon-nitride layers having a first end and an opposite second end, the first end having a wide width and the second end having a narrow width, such that each silicon layer and each silicon-nitride layer have tapered shapes; wherein the pluralities of silicon and silicon-nitride layers are overlapped, such that at least a portion of each silicon-nitride layer overlaps at least a portion of each silicon layer; and a plurality of oxide layers disposed between the pluralities of silicon-nitride and silicon layers, each oxide layer creating a separation spacing between each silicon-nitride and each silicon layers; wherein, when an optical signal is launched through the integrated waveguide polarizer, the optical signal is transitioned between each silicon-nitride layer and each silicon layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.