Method and device for shielding a high-power laser apparatus and high-power-laser optical system employing such a device
US8971363B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 13, 2008 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Jul 22, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Method for shielding a high-power laser apparatus (S) in which a laser beam is generated and then amplified in at least a first amplification stage, including spatial filtering (4) of the amplified laser beam, phase correction (3) carried out on the laser beam before it is spatially filtered, and a measurement of the aberrations (7) on the laser beam. The phase of the beam is corrected so as to produce a beam having minimal aberrations after spatial filtering. The shielding device (D, D′) implementing this method may in particular be employed in apparatus using an intense laser beam of high (terawatt) peak power and in proton therapy units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.