Fabrication of optical devices based on two dimensional photonic crystal structures and apparatus made thereby
US6468823B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2000 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Oct 11, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12078
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A broad class of devices, both active and passive, such as waveguides, microcavities, filters, resonators, lasers, switches, modulators, etc. can be fabricated using the disclosed method. The method is one in which nanocavities in semiconductor membranes can be fabricated, which method is an advantage regardless of the type of device which is ultimately being fabricated therefrom. The method of the invention is illustrated in the case of a photonic crystals waveguide as being made in a silicon-on-insulator (SOI) material. However, the method is not limited to this type of material and can be used in other equivalent material structures such as AlGaAs, InGaAsP, or the like. The semiconductor membranes which are fabricated incorporate two dimensional photonic crystals for confinement of light in the lateral or in-plane direction and total internal reflection for the confinement in vertical direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.