π-Phase shift device for light
US7532384B2 · kind B2 · utility
4Cited by
14References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2006 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Nov 15, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/32
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phase shifter includes at least one photonic crystal structure having alternating high and low index dielectric layers. At least two defect structures are positioned between said photonic crystal structures. The defect structure includes one or more nonlinear materials used to produce an index change, whose effect is amplified to produce a specified phase shift in the output signal of said phase shifter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.