Integrated on-chip polarizer
US10215920B2 · kind B2 · utility
3Cited by
23References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2017 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Jul 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12116
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A low loss high extinction ratio on-chip polarizer is disclosed. The polarizer is formed of a mode convertor followed by a mode squeezer and a dump waveguide, and may be configured to pass a desired waveguide mode and reject undesired modes. An embodiment is described that transmits a TE0 mode while blocking a TM0 mode by converting it into a higher-order TEn mode in a waveguide taper, squeezing out the TEn mode in a second waveguide taper to lessen its confinement, and then dumping the TEn mode in a waveguide bend that is configured to pass the TE0 mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.