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Proceedings Paper

Development of a laser glass for the National Ignition Facility
Author(s): Joseph S. Hayden; John H. Campbell; Stephen A. Payne
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Paper Abstract

We review the development of a new glass formulation and manufacturing technology for a neodymium-doped phosphate based laser glass used in the LLNL National Ignition Facility (NIF) and the French Laser MegaJoule (LMJ). The glass development process built on both accumulated experience and the utilization of glass science principles, and the resultant new glass offers superior laser properties in combination with improvements in physical properties to enhance manufacturing yield. Essentially in parallel, a continuous melting production line was also conceived, designed and operated to meet both the schedule and cost targets of the NIF. Prior to 1997, phosphate laser glasses were manufactured by a discontinuous pot-melting process with limited production rate and associated high costs. The continuous melting process met several technical challenges, including producing glass with low residual water content and absence of inclusions which become damage sites when used in the NIF laser system.

Paper Details

Date Published: 2 May 2007
PDF: 10 pages
Proc. SPIE 6545, Window and Dome Technologies and Materials X, 654508 (2 May 2007); doi: 10.1117/12.719749
Show Author Affiliations
Joseph S. Hayden, SCHOTT North America, Inc. (United States)
John H. Campbell, Lawrence Livermore National Lab. (United States)
Stephen A. Payne, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 6545:
Window and Dome Technologies and Materials X
Randal W. Tustison, Editor(s)

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