High-power blue-violet AlGaN-cladding-free m-plane InGaN/GaN laser diodes
RM Farrell, DA Haeger, PS Hsu, MC Schmidt… - Applied Physics …, 2011 - pubs.aip.org
We demonstrate AlGaN-cladding-free (ACF) m-plane InGaN/GaN laser diodes (LDs) with
peak output powers and estimated front facet optical power densities that are comparable to
the state-of-the-art single-stripe emitter c-plane LDs. The threshold current density, slope
efficiency, and peak output power were 4.66 kA/cm 2, 1.29 W/A, and 1.6 W, respectively,
after facet coating and under pulsed conditions. Catastrophic optical mirror damage was not
observed up to an estimated optical power density of 51.2 MW/cm 2 at the front mirror facet …
peak output powers and estimated front facet optical power densities that are comparable to
the state-of-the-art single-stripe emitter c-plane LDs. The threshold current density, slope
efficiency, and peak output power were 4.66 kA/cm 2, 1.29 W/A, and 1.6 W, respectively,
after facet coating and under pulsed conditions. Catastrophic optical mirror damage was not
observed up to an estimated optical power density of 51.2 MW/cm 2 at the front mirror facet …
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