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Conferences > CLEO_SI > 2011 > CTuV > CTuV1

Active Coherent Combination of >200 Semiconductor Amplifiers using a SPGD Algorithm*

S. M. Redmond, J. E. Kansky, K. J. Creedon, L. J. Missaggia, M. K. Connors, G. W. Turner, T. Y. Fan, and A. Sanchez-Rubio

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Abstract

We have demonstrated active coherent beam combination of 218 individually-addressable semiconductor amplifiers with 38.5W CW output. Phase actuation was achieved by adjusting the drive current and controlled using a stochastic-parallel-gradient-descent algorithm.

© 2011 Optical Society of America

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