Osram claims to have achieved a breakthrough with its direct emitting green indium-gallium-nitride (InGaN) laser.
Laboratory results show that it already achieves an optical output of 50 mW and emits light in true green with a wavelength of 515 nm.
In pulsed mode operation at room temperature, the laboratory prototype has achieved an optical output of 50 mW and the threshold current density is around 9 kA/cm².
