학술논문

Recent advances in flashlamp-pumped neodymium-glass amplifiers
Document Type
Conference
Source
Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Edition. CLEO '99. Conference on Lasers and Electro-Optics (IEEE Cat. No.99CH37013) Lasers and electro-optics 99 Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on. :127-128 1999
Subject
Photonics and Electrooptics
Components, Circuits, Devices and Systems
Shape
Coatings
Silver
Thermal stability
Costs
Cooling
Acceleration
Apertures
Prototypes
Ignition
Language
Abstract
Summary form only given. We performed both modeling and experiments to develop performance-enhancing features for flashlamp-pumped, neodymium-glass, Brewster-angle-slab amplifiers. Features developed included improved flashlamp-reflector shapes for increasing pumping efficiency and improving gain uniformity; sol-gel anti-reflective coatings for increasing pumping efficiency; tarnish-resistant silver for improving gain stability and reducing operating costs; and turbulent-gas cooling of the flashlamps for accelerating thermal recovery and shot rate. These features were evaluated on a multisegment amplifier with eight 40-cm-square apertures arranged in a four-aperture high by two-aperture-wide matrix This amplifier was a prototype for the National Ignition Facility (NIF) now under construction at Lawrence Livermore National Laboratory.