Low-threshold high-temperature operation of lambda similar to 7.4 mu m quantum cascade lasers
| Data(s) |
2007
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|---|---|
| Resumo |
We report low-threshold high-temperature operation of 7.4 mu m strain-compensated InGaAs/InAlAs quantum cascade lasers (QCLs). For an uncoated 22-mu m-wide and 2-mm-long laser, the low-threshold current densities, i.e. 0.33 kA/cm(2) at 81 K in pulsed mode and 0.64 kA/cm(2) at 84 K in cw mode, are realized. High-temperature operation of uncoated devices, with a high value of 223 K, is achieved in cw mode. |
| Identificador | |
| Idioma(s) |
英语 |
| Fonte |
Li, L (Li Lu); Liu, FQ (Liu Feng-Qi); Shao, Y (Shao Ye); Liu, JQ (Liu Jun-Qi); Wang, ZG (Wang Zhan-Guo) .Low-threshold high-temperature operation of lambda similar to 7.4 mu m quantum cascade lasers ,CHINESE PHYSICS LETTERS,JUN 2007,24 (6):1577-1579 |
| Palavras-Chave | #半导体材料 #CONTINUOUS-WAVE OPERATION |
| Tipo |
期刊论文 |
