Active region-less modulator and method
US11520175B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2020 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Oct 11, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/38
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polymer modulator including a waveguide core defined over an insulating layer and having a first passive region including a light input, a second passive region including a light output, and an active region optically coupling the passive regions into a continuous waveguide core between the input and output. The waveguide core in the first and second passive regions including one of sol-gel and SiO2 surrounded by cladding including one of sol-gel and SiO2. The cladding in the passive regions having a first refractive index, the waveguide core in both regions having a second refractive index at least 0.01 higher than the first refractive index. The waveguide core in the active region including sol-gel, a cladding layer of sol-gel positioned between the insulating layer and the waveguide core, the refractive index of the waveguide core is at least 0.01 higher than the refractive index of the cladding layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.