Optical isolator
US8625197B2 · kind B2 · utility
2Cited by
13References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2011 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Jan 18, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9646
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An optical isolator including a Faraday rotator that has a high Faraday effect and a high transmission factor in a wavelength used is provided. An optical isolator comprises at least: a Faraday rotator; a polarizer arranged on a light incidence side of the Faraday rotator; and an analyzer arranged on a light exit side of the Faraday rotator, wherein the Faraday rotator consists of an oxide that contains an ytterbium oxide (Yb2O3) with a mass ratio of 30% or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.