Autor: |
Kazuaki Nishikata, Hitoshi Shimizu, F. Iwase, Yoshiyuki Hirayama, Takeyoshi Matsuda, Michinori Irikawa |
Rok vydání: |
1995 |
Předmět: |
|
Zdroj: |
Journal of Crystal Growth. 150:1328-1332 |
ISSN: |
0022-0248 |
DOI: |
10.1016/0022-0248(95)80154-5 |
Popis: |
Dependence of critical layer thickness ( h c ) and photoluminescence (PL) intensity on growth temperature ( T g ) was investigated for 1% compressively strained Ga 0.32 In 0.68 As/AlInAs on InP. We found, for the first time, a strong T g dependence of h c in this system with h c of 24 nm at 500°C and 14 nm at 530°C. The PL intensity increased with T g , reaching a maximum at 530°C. We fabricated 1.55 μm multi-quantum-well (MQW) lasers with 1% compressively strained wells under optimized growth conditions. Threshold current density as low as 1.08 kA/cm 2 at a cavity length of 800 μm was obtained. This threshold current density is one of the lowest values obtained for 1.55 μm AlGaInAs MQW lasers grown by molecular beam epitaxy (MBE). |
Databáze: |
OpenAIRE |
Externí odkaz: |
|