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High power solid state laser modulator

United States Patent

6,728,284
April 27, 2004
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A multi-stage magnetic modulator provides a pulse train of .+-.40 kV electrical pulses at a 5-7 kHz repetition rate to a metal vapor laser. A fractional turn transformer steps up the voltage by a factor of 80 to 1 and magnetic pulse compression is used to reduce the pulse width of the pulse train. The transformer is fabricated utilizing a rod and plate stack type of construction to achieve a high packing factor. The pulses are controlled by an SCR stack where a plurality of SCRs are electrically connected in parallel, each SCR electrically connected to a saturable inductor, all saturable inductors being wound on the same core of magnetic material for enhanced power handling characteristics.
Birx; Daniel L. (Oakley, CA), Ball; Don G. (Livermore, CA), Cook; Edward G. (Livermore, CA)
The United States of America as represented by the United States Department of Energy (Washington, DC)
08/ 079,177
June 8, 1993
STATEMENT AS TO RIGHTS OF INVENTION The United States Government has rights in this invention pursuant to contract No. W-7 40 5-ENG-4 8 between the United States Department of Energy and the University of California for the operation of the Lawrence Livermore National Laboratory.