| 摘要 |
A solid state laser amplifier architecture in which multiple zig-zag slab laser amplifiers ( 50 ) are stacked together, side-pumped using a common pump source ( 52, 54 ), and cooled with a common cooling system. The stack of zig-zag slabs ( 50 ) produces an array of sub-beams ( 62 ) that can be combined coherently into a single composite output beam. Variations in pump power absorption through the stack are mitigated by selection of doping levels for the slabs ( 50 ). The composite output beam is sufficiently symmetrical to be directed through conventional optics of circular cross section. Multiple stacks may be arranged in a two-dimensional array to obtain even higher output powers.
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