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We present an external dual grating reflector coupled surface emitting laser array. The emitters are wavelength locked by means of a diffraction grating array in Littrow arrangement. 64 Watts of total peak power is demonstrated.
Vertically stacked array is based on grating coupled surface emitting laser diodes with monolithically integrated wavelength control element. Advanced performance of individual emitters allows exploiting spatial and spectral beam combining to achieve high brightness sources.
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