Doped polymer films for waveguides
US5080931A · kind A · utility
4Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1988 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Apr 25, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3615
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of forming optical waveguides is described in which a film of a novolac resin is deposited on a transparent substrate and a dopant material is incorporated into the film during or after the coating step. Additional quantities of the same or different dopant may be incoporated into the dried film by solvent assisted indiffusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.