| High-Duty-Cycle Operation of GaAs/AlGaAs Quantum Cascade Laser above Liquid Nitrogen Temperature |
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| 作者姓名： | 刘俊岐 刘峰奇 邵烨 李路 郭瑜 王占国 王良臣 |
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| 作者单位： | [1]Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083 [2]Engineering Research Center for Semiconductor Integrated Technology, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083 |
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| 基金项目： | Supported by the National Natural Science Foundation of China for Distinguished Young Scholars （60525406）, the General Programme and Key Programme of the National Natural Since Foundation of China （90101002 and 60136010）, the Special Fund for Major State Basics Research Project of China （G20000683-2）, and National High Technology Programs of China （2001AA311140 and 2005AA31G040）. |
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| 摘 要： | We present a detailed study of λ- 9.75 μm GaAs/AlGaAs quantum cascade lasers. For a coated 2-rmm-long and 40-μm-wide laser, an optical power of 85 μ W is observed at 95% duty cycle at 80K. At a moderate driving pulse （1 kHz and 1% duty cycle）,the device presents a peak power more than 20mW even at 120K. At 80K, the fitted result of threshold current densities shows evidence of potential cw operation.
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| 关 键 词： | 量子叶栅激光 液体氮 光能量 量子学 |
| 收稿时间： | 2006-05-20 |
| 修稿时间： | 2006-05-20 |
High-Duty-Cycle Operation of GaAs/AlGaAs Quantum Cascade Laser above Liquid Nitrogen Temperature |
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| LIU Jun-Qi, LIU Feng-Qi,SHAO Ye, LI Lu, GUO Yu, WANG Zhan-Guo,WANG Liang-Chen.High-Duty-Cycle Operation of GaAs/AlGaAs Quantum Cascade Laser above Liquid Nitrogen Temperature[J].Chinese Physics Letters,2006,23(11):2968-2971. |
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| Authors: | LIU Jun-Qi LIU Feng-Qi SHAO Ye LI Lu GUO Yu WANG Zhan-Guo WANG Liang-Chen |
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| Institution: | 1. Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083; 2. Engineering Research Center for Semiconductor Integrated Technology, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083 |
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