Optical gain materials for high energy lasers and laser illuminators and methods of making and using same
US12322921B2 · kind B2 · utility
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Key dates
| Filing date | Mar 12, 2020 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Jun 9, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2304/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Core-cladding planar waveguide (PWG) structures and methods of making and using same. The core-cladding PWG structures can be synthesized by hydride vapor phase epitaxy and processed by mechanical and chemical-mechanical polishing. An Er doping concentration of [Er] between 1×1018 atoms/cm3 and 1×1022 atoms/cm3 can be in the core layer. Such PWGs have a core region that can achieve optical confinement between 96% and 99% and above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.