Different heterostructures containing InGaAs/InP quantum wells, separa
te confinement heterostructures and superlattices are grown by molecul
ar beam epitaxy on InP substrates. These layers are grown in tensile a
nd compressive strain and their luminescence emission wavelength is ke
pt around 1550 nm. The growth parameters (temperature, substrate quali
ty) are found to be of prime importance to obtain high quality materia
ls.