Optical switching devices
US5202786A · kind A · utility
19Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1991 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | Sep 12, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0126
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical switching device employs a rare earth bis-phthalocyanine having good third-order nonlinear susceptibilities. In a preferred optical switch, the rare earth bis-phthalocyanine is employed as a nonlinear optical material body that fills the space between two partially reflecting mirrors. When light incident on the switch is below a given intensity level, light passes through the switch and the switch is in an open state. When light is above a given intensity level, light is trapped in the nonlinear optical material and the switch is in a closed state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.