Polarizing separating device and optical isolator employing the same
US5076675A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1989 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Oct 26, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/093
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device which includes a polarizer wherein one of a pair of transmission faces of a transparent substrate by a light beam on which a polarizing separating film is not formed is formed in an inclined relationship with respect to the other transmission face of the transparent substrate on which the polarizing separating film is formed and a parallel light beam having a predetermined incident angle with respect to the polarizing separating film is passed through the polarizing separating film to effect polarized light separation. Two such devices are provided and a Faraday rotator is provided between the two devices to constitute an optical isolator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.