Dispersion compensated diffractive optical element beam combiner
US9991678B1 · kind B1 · utility
1Cited by
18References
20Claims
0Family size
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Key dates
| Filing date | Jun 9, 2015 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Apr 19, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/06754
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical system, such as a fiber laser amplifier, including a plurality of optical sources, such as fiber amplifiers, each generating a beam. In one embodiment, the system includes first and second diffraction gratings that correct the angle of the propagation direction of the beams to remove angular dispersion caused by a diffractive optical element (DOE). In another embodiment, the system includes a single diffraction grating, where the optical beams pass through the grating twice to also remove the angular dispersion caused by the DOE.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.