Multi-clad optical fiber
US10634842B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Apr 20, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/302
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multi-clad optical fiber design is described in order to provide low optical loss, a high numerical aperture (NA), and high optical gain for the fundamental propagating mode, the linearly polarized (LP) 01 mode in the UV and visible portion of the optical spectrum. The optical fiber design may contain dopants in order to simultaneously increase the optical gain in the core region while avoiding additional losses during the fiber fabrication process. The optical fiber design may incorporate rare-earth dopants for efficient lasing. Additionally, the modal characteristics of the propagating modes in the optical core promote highly efficient nonlinear mixing, providing for a high beam quality (M2<1.5) output of the emitted light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.