Northrop Grumman Corporation has made significant progress in the development of compact, high power, continuous
operation solid state lasers for military applications during the past six years. The Joint High Power Solid State Laser
(JHPSSL) program is nearing completion of its third phase; its key objective is to demonstrate a 100kW solid state laser
with excellent beam quality. Northrop's unique scalable architecture coherently combines modular 15kW lasers to
produce power levels of 100kW and beyond with excellent beam quality and run times. This paper describes the
JHPSSL program history, Northrop's high power solid state laser architecture and our demonstrated results.