R. Blanchard, C. Grezes, S. Menzel, C. Pflugl, L. Diehl, Y. Huang, J. Ryou, R. Dupuis, F. Capasso
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Vertical monolithic integration of quantum cascade lasers for high-power broadband applications
We demonstrate 1.1W peak power from a monolithic broadband laser composed of four quantum cascade laser active regions distributed over two uncoupled optical waveguides. This work paves the way for high-brightness broadband mid-infrared sources.