Strain Effects on Gain Properties of InGaAlN Blue LD

The strain effects on the optical gain properties of wurtzite InGaAIN multiple quantum well blue laser diode structures were investigated using the self-consistent method and the multiband Hamiltonian for the strained wurtzite crystal. 2% compressive strain gave up to 60% enhancement to the differential gain as well as 15 nm blue shift in the lasing wavelength.