In order to reduce the threshold current experiments were conducted to select lattice constants having the active region and the neighboring regions about equal to each other.
Mepingathano naashono, aalumentu oyendji ihaya kala ya hala okukundathana omaiyuvo gawo nolundji ohaya kala owala ya hala okupopya kombinga yiilonga, yomaupyakadhi nosho wo yomakandulopo gawo.