Back to Search
Start Over
Wavefront correction by target-phase-locking technology in a 500 TW laser facility
- Source :
- Laser Physics Letters. 14:035301
- Publication Year :
- 2017
- Publisher :
- IOP Publishing, 2017.
-
Abstract
- We demonstrate a novel approach termed target-phase-locking that could improve the entire beam wavefront quality of a 500 TW Nd3+:phosphate glass laser facility. The thermal and static wavefront from front-end to target is corrected by using one deformable mirror that receives feedback from both the focal-spot sensor and wavefront sensor, and only the main laser of the laser system is employed in the correction process, with auxiliary calibration light no longer necessary. As a result, a static focal spot with full width at half maximum of 8.87 × 5.74 µm is achieved, the thermal wavefront induced by flash-lamp-pumped Nd3+:phosphate glass is compensated with PV from 3.54–0.43 µm, and a dynamic focal spot with intensity exceeding 1020 W cm−2 is precisely predicted at the target with such an approach.
- Subjects :
- Wavefront
Materials science
Physics and Astronomy (miscellaneous)
business.industry
Wavefront sensor
Laser
01 natural sciences
Deformable mirror
law.invention
010309 optics
Full width at half maximum
Optics
law
0103 physical sciences
Calibration
Optoelectronics
010306 general physics
business
Adaptive optics
Instrumentation
Beam (structure)
Subjects
Details
- ISSN :
- 1612202X and 16122011
- Volume :
- 14
- Database :
- OpenAIRE
- Journal :
- Laser Physics Letters
- Accession number :
- edsair.doi...........0e5e08f8c925364ab08d1576205da268