?????????????????????????????????????????????? ????????????????????????????????????????????????????????????????????????????? ???????????????????????????????????? ????????????????? ?????????????????????????????????????????????????????????? ??????????????????????????????????????????? ??????????????????????????? ???????????????????????????????????????

?????????????????????????????????????????????????????????????????????????????????????????The primary heterojunction diode lasers have been one-heterojunction lasers. These lasers utilized aluminum gallium arsenide p-form injectors situated above n-form gallium arsenide layers grown to the substrate by LPE. An admixture of aluminum replaced gallium