A low-cost solution in generating multiple-bandgaps for 1.55 /spl mu/m optical fibre communications

We have demonstrated that a novel masking technique for low energy quantum well intermixing (QWI), comparable to selective area epitaxy, can be used for the realization of multiple bandgaps in the production of WDM quantum well laser sources, as well as other photonic integrated circuits for use in 1.55 /spl mu/m optical fibre communications applications.