Faraday rotator
US5535046A · kind A · utility
11Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1994 |
| Grant date | Jul 9, 1996 |
| Priority date | — |
| Expiry date | Sep 1, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/093
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A Faraday rotator in which a portion of a rare-earth iron garnet single crystal film is exposed to a localized magnetic field to control hysteresis. In one embodiment, the field is applied by a permanent magnet positioned on a part of the film. As a result, it is possible to fabricate Faraday effect optical switches and magneto-optical sensors using rare-earth iron garnet films having small saturated magnetic field intensities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.