Coherent combination of high-power, zigzag slab lasers |
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| Authors: | Goodno G D Komine H McNaught S J Weiss S B Redmond S Long W Simpson R Cheung E C Howland D Epp P Weber M McClellan M Sollee J Injeyan H |
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| Institution: | Northrop Grumman Space Technology, California 90278, USA. gregory.goodno@ngc.com |
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| Abstract: | We demonstrate a scalable architecture for a high-power, high-brightness, solid-state laser based on coherent combinations of master oscillator power amplifier chains. A common master oscillator injects a sequence of multikilowatt Nd:YAG zigzag slab amplifiers. Adaptive optics correct the wavefront of each amplified beamlet. The beamlets are tiled side by side and actively phase locked to form a single output beam. The laser produces 19 kW with beam quality <2x diffraction limited. To the best of our knowledge, this is the brightest cw solid-state laser demonstrated to date. |
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