Wavelength selective switch
US10620374B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2017 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Oct 9, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0035
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Various methods, systems, and apparatuses, for optical switching are provided. For example, one wavelength selective switch (WSS) includes a plurality of optical ports wherein one or more optical ports are configured to receive one or more input optical beams the one or more input optical beams having a plurality of wavelength channels and wherein one or more of the optical ports are configured to receive one or more wavelength channels of the plurality of wavelength channels for output. The WSS also includes a polarization conditioning assembly, a polarization beam splitter assembly, a direction dependent polarization rotator, a polarization beam splitter, a grating, and a polarization modulator array having a plurality of polarizing modulation cells, each cell configured to independently change a polarization orientation of an optical beam passing through the cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.