Continuous-wave operation in wide-pp II-VI semiconductor current injec
tion laser diodes at room temperature has been demonstrated for the fi
rst time. Stimulated emission was observed at a wavelength of 523.5 nm
with a threshold current of 45 mA (1.4 kA/cm2) from ZnCdSe/ZnSe/ZnMgS
Se single-quantum-well (SQW) separate-confinement hetero-structure (SC
H) laser diodes.