Be-doped In0.5Ga0.5As quantum dot lasers are fabricated and characterized between 20 and 70 °C. At 20 °C, the threshold current per dot layer and the slope efficiency are 22 mA and 0.18 W/A, respectively. The internal quantum efficiency and internal loss are 36% and 4.2 cm-1, respectively. Characteristic temperature as high as 122 K has been measured for these lasers. Room temperature continuous-wave operation has also been achieved.
|Number of pages||4|
|Journal||Journal of Crystal Growth|
|State||Published - May 1999|
|Event||Proceedings of the 1998 10th International Conference on Molecular Beam Epitaxy (MBE-X) - Cannes|
Duration: 31 Aug 1998 → 4 Sep 1998