All of {TAIL ~ the layers} are successively grown by a vapor phase epitaxial process wherein {HEAD ~ the lattice constant} of the GaInAs layer is larger than that of the InP layer at room temperature 
All of { TAIL ~ the layers } are successively grown by a vapor phase epitaxial process wherein { HEAD ~ the lattice constant } of the GaInAs layer is larger than that of the InP layer at room temperature
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH