1-pps 2-μsec pulse high-energy frequency-doubled Nd:YAG/ glass laser for studying combustion processes

A frequency-doubled Nd:YAG/glass laser system has been constructed for use at the Combustion Research Facility at Sandia National Laboratories, Livermore. This laser system will be used to make single-shot spontaneous Raman spectroscopy measurements of ongoing combustion processes. The output of the system is 5 J of 1.064-microm radiation and 0.8 J of 532-nm radiation in a 2-microsec pulse. The repetition rate of the system is 1 pps. A microprocessor-based diagnostic and control system for the operation is described.