One-dimensional photonic crystal with pillars having a layer structure
US10288980B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2017 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jun 9, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/11
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Embodiments are directed to a (quasi) one-dimensional photonic crystal cavity. This cavity comprises a set of aligned pillars, where the pillars are embedded in a cladding. At least one of the pillars has a sandwich structure, wherein a layer of nonlinear optical material is between two layers of materials having, each, a refractive index that is higher than the refractive index of the nonlinear optical material. Embodiments can further include an all-optical modulator or an all-optical transistor, comprising a photonic crystal such as described above. Finally, embodiments are further directed to methods for modulating an optical signal, using such a photonic crystal cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.