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Proceedings Paper

Yb:YAG ceramic-based laser driver for Inertial Fusion Energy (IFE)
Author(s): John Vetrovec; Drew A. Copeland; Amardeep S. Litt
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Paper Abstract

We report on a new class of laser amplifiers for inertial confinement fusion (ICF) drivers based on a Yb:YAG ceramic disk in an edge-pumped configuration and cooled by a high-velocity gas flow. The Yb lasant offers very high efficiency and low waste heat. The ceramic host material has a thermal conductivity nearly 15-times higher than the traditionally used glass and it is producible in sizes suitable for a typical 10- to 20-kJ driver beam line. The combination of high lasant efficiency, low waste heat, edge-pumping, and excellent thermal conductivity of the host, enable operation at 10 to 20 Hz at over 20% wall plug efficiency while being comparably smaller and less costly than recently considered face-pumped alternative drivers using Nd:glass, Yb:S-FAP, and cryogenic Yb:YAG. Scalability of the laser driver over a broad range of sizes is presented.

Paper Details

Date Published: 16 March 2016
PDF: 14 pages
Proc. SPIE 9726, Solid State Lasers XXV: Technology and Devices, 972619 (16 March 2016); doi: 10.1117/12.2220008
Show Author Affiliations
John Vetrovec, Aqwest, LLC (United States)
Drew A. Copeland, Aqwest, LLC (United States)
Amardeep S. Litt, Aqwest, LLC (United States)

Published in SPIE Proceedings Vol. 9726:
Solid State Lasers XXV: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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