Device for the emission of arbitrary optical beam profiles from waveguides into two-dimensional space
US11105977B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2020 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Feb 27, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12107
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical coupler device comprises an optical waveguide having a first edge and an opposing second edge that extend in a direction substantially parallel to a propagation direction of an input light beam injected into the optical waveguide. A grating structure is on a portion of the optical waveguide, with the grating structure having a first side and an opposing second side. The first and second sides of the grating structure extend in the same direction as the first and second edges of the optical waveguide. An optical slab adjoins with the first side of the grating structure and is in optical communication with an output of the grating structure. The grating structure includes an array of grating lines configured to diffract the input light beam into the slab at an angle with respect to the propagation direction, such that a diffracted light beam is output from the slab.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.