Polarization combiner and optical modulation device
US9638927B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2015 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Feb 22, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polarization combiner includes: a base member that includes a body portion, an arm portion extending from the body portion, and a notch portion surrounded with the body portion and the arm portion; a polarization rotating element that is fixed to the arm portion of the base member and that rotates a polarization direction of a first polarized wave; and a polarization combining element that is fixed to the base member so as to face the notch portion of the base member and the polarization rotating element, the polarization combining element combining two polarized waves entering from a surface facing the notch portion and the polarization rotating element, the two polarized waves including the first polarized wave whose polarization direction is rotated by the polarization rotating element and a second polarized wave passing the notch portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.