Compact polarization couplers
US6560378B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2001 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Aug 2, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2773
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention, generally speaking, provides compact design of optical couplers for combining two differently polarized light beams onto a collimator or splitting a composed light beam into two differently polarized light beams. According to another embodiment, the size of the polarization beam combiner is minimized by using a pair of specially designed fiber collimators that use an asymmetrical sleeve. As a result, a coupler, according to the present invention, uses less components, is of small in size and provides an easy-aligning structure. Further the coupler offers lower optical insertion loss with minimized physical size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.