K. Uppal et al., STRAIN EFFECTS ON INGAP-INGAASP-GAASP TENSILE-STRAINED QUANTUM-WELL LASERS, IEEE photonics technology letters, 7(10), 1995, pp. 1128-1130
Tensile strained InGaP-InGaAsP-GaAsP single quantum well broad area la
sers have been grown by metalorganic chemical vapor deposition and the
effects of strain on the device parameters bane been studied, The las
ing mode is found to be TE for a strain of -0.46% and TM for a strain
of -0.71%. The role of barrier height in controlling gain and temperat
ure dependence in this system is measured. A low threshold current den
sity of 221 A/cm(2) has been obtained for a cavity length of 2.34 mm w
ith -0.46% strain.