High-order polarization conversion device, optical waveguide device, and DP-QPSK modulator
US9557482B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2015 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Dec 21, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12061
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high-order polarization conversion device configured of a planar optical waveguide, includes: a substrate; a lower clad disposed on the substrate; a core including a lower core and an upper core, the lower core being disposed on the lower clad and having a fixed height in a rectangular sectional shape, the upper core being formed of the same material as the lower core and having a fixed height in a rectangular sectional shape that is disposed continuously on the lower core; and an upper clad that is disposed on the core and the lower clad and is formed of the same material as the lower clad. The high-order polarization conversion device performs high-order polarization conversion between TE1 of the start portion and TM0 of the end portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.