Method of forming an optical device by laser scanning
US11131863B2 · kind B2 · utility
0Cited by
3References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 1, 2019 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Oct 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12169
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of forming an optical device in a body (32), comprises performing a plurality of laser scans (34,36) to form the optical device, each scan comprising relative movement of a laser beam and the body thereby to scan the laser beam along a respective path (34a, 34b 34f; 36a, 36b 36f) through the body to alter the refractive index of material of that path, wherein the paths are arranged to provide in combination a route for propagation of light through the optical device in operation that is larger in a direction substantially perpendicular to the route for propagation of light than any one of the paths individually.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.