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DOE OSTI · 1580918

Deterministic stabilization of eight-way 2D diffractive beam combining using pattern recognition

Du, Qiang·Zhou, Tong·Doolittle, Lawrence R.·Huang, Gang·Li, Derun·Wilcox, Russell
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Abstract

We demonstrate a new method for controlling diffractive, high-power beam combination, sensing phase errors by analyzing the intensity pattern of uncombined side beams at the output. A square array of eight beams is combined with <0.3% stability and 84.6% efficiency. As the channel count is increased, so does the usable information, enabling scaling to large channel counts without significant slowing of control loop response time, an advantage over single-input algorithms.

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BibTeXRIS

Du, Qiang, Zhou, Tong, Doolittle, Lawrence R., Huang, Gang, Li, Derun, Wilcox, Russell. 2019-09-11. Deterministic stabilization of eight-way 2D diffractive beam combining using pattern recognition. https://doi.org/10.1364/ol.44.004554

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