Adjustable photonic crystal and method of adjusting the index of refraction of photonic crystals to reversibly tune transmissions within the bandgap
US6898358B2 · kind B2 · utility
3Cited by
15References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2002 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | Jul 30, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/12007
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photonic crystal comprising a waveguide made of material. The waveguide has a periodic set of holes. The material proximate to at least one of the holes in the periodic set of holes exhibits an index of refraction that has been modified by the application of laser energy relative to the material proximate to other holes in the periodic set of holes. The photonic crystal is tuned to temporarily transmit a specific wavelength of light to create an on-off switch for the specific wavelength. Multiple photonic crystals are used to form a multiplexer and a demultiplexer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.