Metasurface optical pulse shaper for shaping an optical pulse in a temporal domain
US10720993B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2019 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | May 10, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A metasurface optical pulse shaper includes a metasurface with superpixels disposed on an entry side of the metasurface and a wire grid polarizer disposed on an exit surface of the metasurface for controlling a phase, amplitude, or polarization of an optical pulse, wherein the metasurface in combination with dispersers provide for optical shaping of the optical pulse. A process for optically changing a pulse shape includes dispersing a primary optical pulse; separating spatially, by frequency, primary frequency waves; changing, by superpixels, a relative phase of the primary frequency waves and producing phase waves that are separated spatially by frequency and phase; and producing a plurality of shaped frequency waves such that, from an individual phase wave, a shaped frequency wave is produced that separated spatially by frequency and phase, such that a superposition of shaped frequency waves produce a shaped optical pulse that has pulse shape that is different than the primary optical pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.