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Reconfigurable semiconductor laser networks based on diffractive coupling

Brunner, Daniel; Fischer, Ingo
Optics Letters 40, OSA 3854-3857 (2015)

Networks of optical emitters are highly sought-after, both for fundamental investigations as well as for various technological applications. We introduce and implement a novel scheme, based on diffractive optical coupling, allowing for the coupling of large numbers of optical emitters with adjustable weights. We demonstrate its potential by coupling emitters of a 2D array of semiconductor lasers with significant efficiency.