Three-port optical polarization combiner
US6791751B2 · kind B2 · utility
1Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2003 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Jun 5, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/283
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A three-port optical polarization combiner is disclosed. It is used for combining two optical pump beams to increase optical pumping power in a DWDM optic fiber transmission system. The combiner will combine two beams with orthogonal polarizations into one and transmit it to another port for output. By non-reciprocal effect of a half-wave plate and a Faraday rotator, the reverse noise will be blocked to improve transmission quality and protect the laser lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.