Spatio-temporal modeling and optimization of a deformable-grating compressor for short high-energy laser pulses
- Rochester Institute of Technology, Rochester, NY (United States)
- Univ. of Rochester, Rochester, NY (United States)
Monolithic large-scale diffraction gratings are desired to improve the performance of high-energy laser systems and scale them to higher energy, but the surface deformation of these diffraction gratings induce spatio-temporal coupling that is detrimental to the focusability and compressibility of the output pulse. A new deformable-grating-based pulse compressor architecture with optimized actuator positions has been designed to correct the spatial and temporal aberrations induced by grating wavefront errors. An integrated optical model has been built to analyze the effect of grating wavefront errors on the spatio-temporal performance of a compressor based on four deformable gratings. A 1.5-meter deformable grating has been optimized using an integrated finite-element-analysis and genetic-optimization model, leading to spatio-temporal performance similar to the baseline design with ideal gratings.
- Research Organization:
- Univ. of Rochester, NY (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- NA0001944
- OSTI ID:
- 1242270
- Alternate ID(s):
- OSTI ID: 1466601
- Journal Information:
- Optics Express, Vol. 23, Issue 20; ISSN 1094-4087
- Publisher:
- Optical Society of America (OSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Theoretical comparison of spatiotemporal contrasts of pulsed beams in unfocusing, 1D-focusing, and 2D-focusing fields and enhancement of the on-axis temporal contrast at the focus
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journal | January 2018 |
Description of spatio-temporal couplings from heat-induced compressor grating deformation
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journal | January 2020 |
Description of spatio-temporal couplings from heat-induced compressor grating deformation
|
text | January 2020 |
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