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Title: High energy bursts from a solid state laser operated in the heat capacity limited regime

High energy bursts are produced from a solid state laser operated in a heat capacity limited regime. Instead of cooling the laser, the active medium is thermally well isolated. As a result, the active medium will heat up until it reaches some maximum acceptable temperature. The waste heat is stored in the active medium itself. Therefore, the amount of energy the laser can put out during operation is proportional to its mass, the heat capacity of the active medium, and the temperature difference over which it is being operated. The high energy burst capacity of a heat capacity operated solid state laser, together with the absence of a heavy, power consuming steady state cooling system for the active medium, will make a variety of applications possible. Alternately, cooling takes place during a separate sequence when the laser is not operating. Industrial applications include new material working processes.
Inventors:
 [1];  [1];  [2];  [2];  [3]
  1. (Livermore, CA)
  2. (Pleasanton, CA)
  3. (Manteca, CA)
Issue Date:
OSTI Identifier:
870467
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
Patent Number(s):
US 5526372
Contract Number:
W-7405-ENG-48
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
Language:
English
Subject:
energy; bursts; solid; laser; operated; heat; capacity; limited; regime; produced; cooling; active; medium; thermally; isolated; result; reaches; maximum; acceptable; temperature; waste; stored; amount; operation; proportional; mass; difference; burst; absence; heavy; power; consuming; steady; variety; applications; alternately; takes; separate; sequence; operating; industrial; material; processes; heat capacity; industrial applications; temperature difference; waste heat; active medium; laser operated; energy bursts; capacity limited; limited regime; /372/

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