skip to main content

DOE PAGESDOE PAGES

Title: Active cooling of pulse compression diffraction gratings for high energy, high average power ultrafast lasers

Laser energy absorption and subsequent heat removal from diffraction gratings in chirped pulse compressors poses a significant challenge in high repetition rate, high peak power laser development. In order to understand the average power limitations, we have modeled the time-resolved thermo-mechanical properties of current and advanced diffraction gratings. We have also developed and demonstrated a technique of actively cooling Petawatt scale, gold compressor gratings to operate at 600W of average power - a 15x increase over the highest average power petawatt laser currently in operation. As a result, combining this technique with low absorption multilayer dielectric gratings developed in our group would enable pulse compressors for petawatt peak power lasers operating at average powers well above 40kW.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Report Number(s):
LLNL-JRNL-703782
Journal ID: ISSN 1094-4087; OPEXFF
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 24; Journal Issue: 26; Journal ID: ISSN 1094-4087
Publisher:
Optical Society of America (OSA)
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; thermal effects; diffraction gratings; pulse compression; ultrafast lasers
OSTI Identifier:
1342039

Alessi, David A., Rosso, Paul A., Nguyen, Hoang T., Aasen, Michael D., Britten, Jerald A., and Haefner, Constantin. Active cooling of pulse compression diffraction gratings for high energy, high average power ultrafast lasers. United States: N. p., Web. doi:10.1364/OE.24.030015.
Alessi, David A., Rosso, Paul A., Nguyen, Hoang T., Aasen, Michael D., Britten, Jerald A., & Haefner, Constantin. Active cooling of pulse compression diffraction gratings for high energy, high average power ultrafast lasers. United States. doi:10.1364/OE.24.030015.
Alessi, David A., Rosso, Paul A., Nguyen, Hoang T., Aasen, Michael D., Britten, Jerald A., and Haefner, Constantin. 2016. "Active cooling of pulse compression diffraction gratings for high energy, high average power ultrafast lasers". United States. doi:10.1364/OE.24.030015. https://www.osti.gov/servlets/purl/1342039.
@article{osti_1342039,
title = {Active cooling of pulse compression diffraction gratings for high energy, high average power ultrafast lasers},
author = {Alessi, David A. and Rosso, Paul A. and Nguyen, Hoang T. and Aasen, Michael D. and Britten, Jerald A. and Haefner, Constantin},
abstractNote = {Laser energy absorption and subsequent heat removal from diffraction gratings in chirped pulse compressors poses a significant challenge in high repetition rate, high peak power laser development. In order to understand the average power limitations, we have modeled the time-resolved thermo-mechanical properties of current and advanced diffraction gratings. We have also developed and demonstrated a technique of actively cooling Petawatt scale, gold compressor gratings to operate at 600W of average power - a 15x increase over the highest average power petawatt laser currently in operation. As a result, combining this technique with low absorption multilayer dielectric gratings developed in our group would enable pulse compressors for petawatt peak power lasers operating at average powers well above 40kW.},
doi = {10.1364/OE.24.030015},
journal = {Optics Express},
number = 26,
volume = 24,
place = {United States},
year = {2016},
month = {12}
}