High quality postgrowth emission wavelength engineering of InAs/InAlGaAs/InP quantum dash-in-well laser

We demonstrate bandgap tuned InAs/InAlGaAs quantum-dash-in-well lasers grown on InP material using postgrowth quantum heterostructure intermixing. Compared to the control (non-intermixed) lasers, the light-current characteristics of lasers with emission wavelength tuned by over 100 nm shows insignificant changed suggesting that the quality of the intermixed material is well-preserved.