Mini fiber optic isolator
US7412132B1 · kind B1 · utility
10Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2005 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Sep 19, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/093
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fiber optic array is miniaturized in a configuration that includes an input collimator, a first birefringence crystal, a waveplate, a Faraday rotator, a second birefringence crystal and a second collimator. The elements are aligned along a common optical axis. A light beam along the optical axis that is passed through the first collimator emerges off of the optical axis and through the remaining elements. It re-emerges from the fiber optic array on axis. The configuration provides substantial attenuation in a backward direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.