Experimental beam combining stabilization using machine learning trained while phases drift

An 8-beam, diffractive coherent beam combiner is phase controlled by a learning algorithm trained while optical phases drift, using a differential mapping technique. Combined output power is stable to 0.4% with 95% of theoretical maximum efficiency, limited by the diffractive element.

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Bibliographic Details
Published in:Optics express 2022-04, Vol.30 (8), p.12639-12653
Main Authors: Du, Qiang, Wang, Dan, Zhou, Tong, Gilardi, Antonio, Kiran, Mariam, Mohammed, Bashir, Li, Derun, Wilcox, Russell
Format: Article
Language:English
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Description
Summary:An 8-beam, diffractive coherent beam combiner is phase controlled by a learning algorithm trained while optical phases drift, using a differential mapping technique. Combined output power is stable to 0.4% with 95% of theoretical maximum efficiency, limited by the diffractive element.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.450255