skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Tunable UV upgrade on OMEGA EP

Abstract

The OMEGA EP laser has been upgraded to provide a UV wavelength-tunable beam to support the study of wavelength detuning for the mitigation of cross-beam energy transfer in direct-drive inertial confinement fusion. The beamline delivers up to 0.5 TW in pulses up to 1-ns duration (0.1 TW up to 2.5 ns), to either the OMEGA or OMEGA EP target chambers with wavelength tunable from 350.2 to 353.4 nm. The upgrade leverages the existing optical parametric amplification (OPA) system in the short-pulse front end of OMEGA EP Beamline 1 for amplification of a new tunable, narrowband fiber front end over a broad spectral range. The tunable OPA output is spatially shaped to form a round OMEGA-like beam, which is amplified in the OMEGA EP beamline, then frequency tripled and characterized using the existing OMEGA EP long-pulse infrastructure. A new 3ω beam-transport system intercepts the tunable UV beam near the OMEGA EP target chamber and image relays it to the P9 port of the OMEGA target chamber for joint shots with the OMEGA 60-beam laser. Commissioning of the tunable UV capability has been completed, and four experimental campaigns have been supported with the tunable beam.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Univ. of Rochester, NY (United States)
Publication Date:
Research Org.:
Univ. of Rochester, NY (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1502137
Grant/Contract Number:  
NA0003856
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Proc. SPIE
Additional Journal Information:
Journal Volume: 10898; Conference: SPIE LASE 2019, San Francisco, CA (United States), 2-7 Feb 2019
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; tunable lasers; UV lasers; high-energy lasers; laser–plasma instability; cross-beam energy transfer

Citation Formats

Kruschwitz, Brian E., Kwiatkowski, Joseph, Dorrer, Christophe, Barczys, Matthew, Consentino, Albert, Froula, Dustin H., Guardalben, Mark J., Hill, Elizabeth M., Nelson, David, Shoup, Milton J., Turnbull, David P., Waxer, Leon J., and Weiner, David. Tunable UV upgrade on OMEGA EP. United States: N. p., 2019. Web. doi:10.1117/12.2505419.
Kruschwitz, Brian E., Kwiatkowski, Joseph, Dorrer, Christophe, Barczys, Matthew, Consentino, Albert, Froula, Dustin H., Guardalben, Mark J., Hill, Elizabeth M., Nelson, David, Shoup, Milton J., Turnbull, David P., Waxer, Leon J., & Weiner, David. Tunable UV upgrade on OMEGA EP. United States. doi:10.1117/12.2505419.
Kruschwitz, Brian E., Kwiatkowski, Joseph, Dorrer, Christophe, Barczys, Matthew, Consentino, Albert, Froula, Dustin H., Guardalben, Mark J., Hill, Elizabeth M., Nelson, David, Shoup, Milton J., Turnbull, David P., Waxer, Leon J., and Weiner, David. Mon . "Tunable UV upgrade on OMEGA EP". United States. doi:10.1117/12.2505419. https://www.osti.gov/servlets/purl/1502137.
@article{osti_1502137,
title = {Tunable UV upgrade on OMEGA EP},
author = {Kruschwitz, Brian E. and Kwiatkowski, Joseph and Dorrer, Christophe and Barczys, Matthew and Consentino, Albert and Froula, Dustin H. and Guardalben, Mark J. and Hill, Elizabeth M. and Nelson, David and Shoup, Milton J. and Turnbull, David P. and Waxer, Leon J. and Weiner, David},
abstractNote = {The OMEGA EP laser has been upgraded to provide a UV wavelength-tunable beam to support the study of wavelength detuning for the mitigation of cross-beam energy transfer in direct-drive inertial confinement fusion. The beamline delivers up to 0.5 TW in pulses up to 1-ns duration (0.1 TW up to 2.5 ns), to either the OMEGA or OMEGA EP target chambers with wavelength tunable from 350.2 to 353.4 nm. The upgrade leverages the existing optical parametric amplification (OPA) system in the short-pulse front end of OMEGA EP Beamline 1 for amplification of a new tunable, narrowband fiber front end over a broad spectral range. The tunable OPA output is spatially shaped to form a round OMEGA-like beam, which is amplified in the OMEGA EP beamline, then frequency tripled and characterized using the existing OMEGA EP long-pulse infrastructure. A new 3ω beam-transport system intercepts the tunable UV beam near the OMEGA EP target chamber and image relays it to the P9 port of the OMEGA target chamber for joint shots with the OMEGA 60-beam laser. Commissioning of the tunable UV capability has been completed, and four experimental campaigns have been supported with the tunable beam.},
doi = {10.1117/12.2505419},
journal = {Proc. SPIE},
number = ,
volume = 10898,
place = {United States},
year = {2019},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share:

Works referenced in this record:

Spectrally tunable, temporally shaped parametric front end to seed high-energy Nd:glass laser systems
journal, January 2017

  • Dorrer, C.; Consentino, A.; Cuffney, R.
  • Optics Express, Vol. 25, Issue 22
  • DOI: 10.1364/OE.25.026802

Theory and simulation of stimulated Brillouin scatter excited by nonabsorbed light in laser fusion systems
journal, January 1981


High-resolution stimulated Brillouin gain spectroscopy in glasses and crystals
journal, January 1993

  • Faris, Gregory W.; Jusinski, Leonard E.; Hickman, A. Peet
  • Journal of the Optical Society of America B, Vol. 10, Issue 4
  • DOI: 10.1364/JOSAB.10.000587

Crossed-beam energy transfer in direct-drive implosions
journal, May 2012

  • Igumenshchev, I. V.; Seka, W.; Edgell, D. H.
  • Physics of Plasmas, Vol. 19, Issue 5, Article No. 056314
  • DOI: 10.1063/1.4718594

Modeling of frequency doubling and tripling with measured crystal spatial refractive-index nonuniformities
journal, January 2001

  • Auerbach, Jerome M.; Wegner, Paul J.; Couture, Scott A.
  • Applied Optics, Vol. 40, Issue 9
  • DOI: 10.1364/AO.40.001404

Crossed-beam energy transfer: polarization effects and evidence of saturation
journal, April 2018

  • Turnbull, D.; Colaïtis, A.; Follett, R. K.
  • Plasma Physics and Controlled Fusion, Vol. 60, Issue 5
  • DOI: 10.1088/1361-6587/aab6d3

Initial performance results of the OMEGA laser system
journal, January 1997


Experimental observation and suppression of transverse stimulated Brillouin scattering in large optical components
journal, January 1989

  • Murray, J. R.; Smith, J. Ray; Ehrlich, R. B.
  • Journal of the Optical Society of America B, Vol. 6, Issue 12
  • DOI: 10.1364/JOSAB.6.002402

Wavelength-detuning cross-beam energy transfer mitigation scheme for direct drive: Modeling and evidence from National Ignition Facility implosions
journal, May 2018

  • Marozas, J. A.; Hohenberger, M.; Rosenberg, M. J.
  • Physics of Plasmas, Vol. 25, Issue 5
  • DOI: 10.1063/1.5022181

OMEGA EP: High-energy petawatt capability for the OMEGA laser facility
journal, June 2006

  • Kelly, J. H.; Waxer, L. J.; Bagnoud, V.
  • Journal de Physique IV (Proceedings), Vol. 133
  • DOI: 10.1051/jp4:2006133015