Multi-wavelength adjustable-radial-mode fiber laser
US11005227B2 · kind B2 · utility
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3References
20Claims
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Key dates
| Filing date | Sep 5, 2019 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Sep 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/03
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high-power fiber laser produces a compound output beam having a center beam and an annular beam. The center beam and the annular beam are independently adjustable in power and wavelength. The output beam is delivered from an output optical fiber having a center core and a concentric annular core. A fundamental beam generated by a seed laser is amplified by a fiber amplifier and partially converted to a second-harmonic beam by a second-harmonic generator. The residual fundamental beam and second-harmonic beam are separated, attenuated, and selectively coupled into the cores of the output optical fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.