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Title: Spatio-temporal modeling and optimization of a deformable-grating compressor for short high-energy laser pulses

Journal Article · · Optics Express
DOI:https://doi.org/10.1364/OE.23.025923· OSTI ID:1242270
 [1];  [2];  [2]
  1. Rochester Institute of Technology, Rochester, NY (United States)
  2. Univ. of Rochester, Rochester, NY (United States)
+ Show Author Affiliations

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
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

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Cited By (3)

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 journal January 2018
Description of spatio-temporal couplings from heat-induced compressor grating deformation journal January 2020
Description of spatio-temporal couplings from heat-induced compressor grating deformation text January 2020

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36 MATERIALS SCIENCE
diffraction gratings
pulse compression
active or adaptive optics