Photonic-Crystal Surface Emitting Lasers (PCSELS) in the Near-Infrared (NIR)

The Navy seeks innovations in PCSELs that combine novel in-plane photonic crystal designs with out-of-plane epitaxial and gain structures to overcome the limitations of current approaches and produce the next generation of semiconductor laser technologies. Current PCSEL architectures face power-scaling limitations as device aperture increases because the mode margin between the desired fundamental mode and competing higher-order modes decreases, making stable, single-mode, diffraction operations...