Spatial light structuring using a combination of multiple orthogonal orbital angular momentum beams with complex coefficients
US10914959B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2018 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Oct 4, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system for structuring a directed energy beam includes one or more coherent light sources that emit one or more initial light beams, one or more spatial light modulators that modulate the one or more initial light beams, and a beam combiner that coherently adds orbital angular momentum beams to create a reconfigurable spatial region of localized power that forms the directed energy beam. Each spatial light modulator is loaded with a pattern that receives an incident light beam and outputs an orbital angular momentum beam. The pattern encodes one or more orthogonal orbital angular momentum functions. Characteristically, each orbital angular momentum having an associated complex weight with which each orbital angular momentum beam is weighted in forming the coherent addition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.