Optical switch
US5432873A · kind A · utility
19Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1992 |
| Grant date | Jul 11, 1995 |
| Priority date | — |
| Expiry date | Sep 11, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical switch comprises a substrate, a first thin film layer formed on the substrate and including a first optical waveguide having a coupling portion and tapered portions therein, a clad layer formed on the thin film layer, a second thin film layer formed on the clad layer and including a second optical waveguide having a coupling portion and tapered portions, wherein a compound including a photochromic material is contained in the clad layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.