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Proceedings Paper

Recent advances in the front-end sources of the LMJ fusion laser
Author(s): Jean-François Gleyze; Jonathan Hares; Sebastien Vidal; Nicolas Beck; Jerome Dubertrand; Arnaud Perrin
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Paper Abstract

LMJ is typical of lasers used for inertial confinement fusion and requires a laser of programmable parameters for injection into the main amplifier. For several years, the CEA has developed front end fiber sources, based on telecommunications fiber optics technologies. These sources meet the needs but as the technology evolves we can expect improved efficiency and reductions in size and cost. We give an up-to-date description of some present development issues, particularly in the field of temporal shaping with the use of digital system. The synchronization of such electronics has been challenging however we now obtain system jitter of less then 7ps rms. Secondly, we will present recent advance in the use of fiber based pre-comp system to avoid parasitic amplitude modulation from phase modulation used for spectral broadening.

Paper Details

Date Published: 18 February 2011
PDF: 10 pages
Proc. SPIE 7916, High Power Lasers for Fusion Research, 79160I (18 February 2011); doi: 10.1117/12.875383
Show Author Affiliations
Jean-François Gleyze, CEA, DAM Ile de France, CESTA (France)
Jonathan Hares, Kentech Instruments Ltd. (United Kingdom)
Sebastien Vidal, CEA, DAM Ile de France, CESTA (France)
Nicolas Beck, CEA, DAM Ile de France, CESTA (France)
Jerome Dubertrand, CEA, DAM Ile de France, CESTA (France)
Arnaud Perrin, CEA, DAM Ile de France, CESTA (France)

Published in SPIE Proceedings Vol. 7916:
High Power Lasers for Fusion Research
Abdul A. S. Awwal; A. Mike Dunne; Hiroshi Azechi; Brian E. Kruschwitz, Editor(s)

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