DOE OSTI · 1768636
81-beam coherent combination using a programmable array generator
Abstract
We have generated 81 independently controllable beams using a spatial light modulator and combined them on a diffractive combiner, to characterize the combiner and develop a fast phase error detection scheme. A key parameter of the diffractive combiner is measured in a new way, enabling an efficient combination when programming calibrated phases of each beam. This testbed provides a platform for development of advanced feedback phase control of high channel-count beam combination.
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Du, Qiang (ORCID:0000000221969801), Wang, Dan, Zhou, Tong, Li, Derun, Wilcox, Russell. 2021-02-04. 81-beam coherent combination using a programmable array generator. https://doi.org/10.1364/oe.416499
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