Apparatus and method for spectral-beam combining of high-power fiber lasers
US7199924B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2006 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Jan 26, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/2391
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus and method for spectral-beam combining light from a plurality of high-power fiber lasers that, in some embodiments, use two substantially identical diffraction gratings in a parallel, mutually compensating configuration to combine a plurality of separate parallel input beams each having a slightly different successively higher wavelength into a single output beam of high quality. In other embodiments, a single diffraction grating is used to combine a plurality of different wavelengths, wherein the input laser beams are obtained from very narrow linewidth sources to reduce chromatic dispersion. In some embodiments, diagnostics and adjustments of wavelengths and/or positions and angles are made dynamically in real time to maintain the combination of the plurality input beams into a single high-quality output beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.