Integrated on-chip polarizer
US10261254B2 · kind B2 · utility
2Cited by
8References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2017 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Oct 5, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12152
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A low loss high extinction ratio on-chip polarizer is disclosed. The polarizer includes an input waveguide taper having an outer waveguiding region that widens in the direction of light propagation along at least a portion of the taper length, and a core waveguiding region that narrows in the direction of light propagation along at least a portion of the taper length, so as to selectively squeeze out light of undesired modes into the outer regions while preserving light of a desired mode in the waveguide core. An integrated light absorber/deflector may be coupled to the outer waveguiding regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.