Beam Combining: High-power fiber-laser beams are combined incoherently

Combining laser beams can boost power at the target far above that produced by a single laser.

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Combining laser beams can boost power at the target far above that produced by a single laser. Incoherent beam combining achieves propagation efficiencies of greater than 90%, while avoiding the complexities of coherent or spectral beam combining.

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PHILLIP SPRANGLE, ANTONIO TING, JOSEPH PEÑANO, RICHARD FISCHER, AND BAHMAN HAFIZI of the Naval Research Laboratory (Bethesda, MD).
www.laserfocusworld.com/articles/331428

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