InGaAs/GaAs/AlGaAs lasers emitting at a wavelength of 1190 nm grown by MOCVD epitaxy on GaAs substrate

InGaAs/GaAs/AlGaAs laser heterostructures are grown by MOCVD epitaxy on GaAs substrates. Mesastripe laser diodes with an aperture of 100 μm emitting at a wavelength of 1190 nm are fabricated. It is shown that, in these lasers, the active region is relaxed, which manifests itself in the spread of attainable maximal power for various lasers obtained from the same heterostructure. The maximal emission power in a CW mode of lasing for such lasers was 5.5 W per mirror.