| Distributed feedback quantum cascade lasers operating in continuous-wave mode at λ≈7.6μm |
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| 引用本文： | 张锦川,王利军,刘万峰,刘峰奇,赵立华,翟慎强,刘俊岐,王占国.Distributed feedback quantum cascade lasers operating in continuous-wave mode at λ≈7.6μm[J].半导体学报,2012,33(2):51-53. |
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| 作者姓名： | 张锦川 王利军 刘万峰 刘峰奇 赵立华 翟慎强 刘俊岐 王占国 |
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| 作者单位： | Key Laboratory of Semiconductor Materials Science,Institute of Semiconductors,Chinese Academy of Sciences;Department of Electronic Engineering,Tsinghua University |
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| 基金项目： | the National Science Fund for Distinguished Young Scholars of China，the National Natural Science Foundation of China，the National High Technology Research and Development Program of China |
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| 摘 要： | 正Distributed feedback(DFB) quantum cascade lasers(QCLs) in continuous-wave(CW) mode emitting atλ≈7.6μm are presented.Holographic lithography was used to fabricate the first-order distributed feedback grating. For a high-reflectivity-coated QCL with 14.5-μm-wide and 3-mm-long cavity,CW output powers of 300 mW at 85 K and still 10 mW at 270 K are obtained.Single-mode emission with a side-mode suppression ratio(SMSR) of about 30 dB and a wide tuning range of ~300 nm in the temperature range from 85 to 280 K is observed.
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| 关 键 词： | quantum cascade laser distributed feedback holographic lithography |
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