Compact two-by-n optical components based on bierfringent walk-off crystals
US5734763A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 4, 1996 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | Sep 4, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3834
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The optical component comprises a first I/O port, a second I/O port and a polarization-changing optical element located between the first I/O port and the second I/O port. The second I/O port is optically aligned with the first I/O port. The first I/O port includes a first opposed walk-off crystal pair and a second opposed walk-off crystal pair. The second opposed walk-off crystal pair is a mirror image of the first opposed walk-off crystal pair. Each opposed walk-off crystal pair comprises two walk-off crystals. Each walk-off crystal has a walk-off direction. Each walk-off crystal includes an attachment face substantially parallel to the walk-off direction, a first face orthogonal to the attachment faces, and a second face opposite the first face. The walk-off crystals are attached to one another with their attachment faces in contact, and their walk-off directions opposed. The opposed walk-off directions of the walk-off crystals of the first opposed walk-off crystal pair and the opposed walk-off directions of the walk-off crystals of the second opposed walk-off crystal pair define opposite rotational directions. The opposed walk-off crystal pairs are attached to one another with …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.