Optical switching device utilizing multiple quantum well structures between intersecting waveguides
US4737003A · kind A · utility
37Cited by
18References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1984 |
| Grant date | Apr 12, 1988 |
| Priority date | — |
| Expiry date | Dec 21, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3138
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical switch wherein a stripe layer of a compound semiconductor whose refractive index is changed by changing a carrier concentration thereof is disposed so as to cut off both optical waveguides at a position of a longer diagonal line of an intersection portion between the optical waveguides formed on a substrate of a compound semiconductor and intersecting each other at a predetermined angle, and the refractive index is changed by causing current to flow to the stripe layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.