All-optical switch utilizing inversion of two-level systems
US5268785A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1993 |
| Grant date | Dec 7, 1993 |
| Priority date | — |
| Expiry date | Feb 8, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F3/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Described here is an all-optical switch having two states, one that absorbs ncident coherent optical radiation and another that amplifies incident coherent optical radiation. The state of switch is changed in response to the passage of an ultra-short coherent optical pulse when the peak field strength of the pulse is in a wide region about the effective dipole moment per unit volume, a characteristic material parameter proportional to the density and the dipole transition moment of the selected active two-level systems which are uniformly distributed with sufficient density so that there is more than one two-level system per cubic transition wavelength causing dipole-dipole interactions to be non-negligible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.