High-power GaAs/AlGaAs quantum fountain unipolar laser emitting at 14.5 μm with 2.5% tunability
High-power GaAs/AlGaAs quantum fountain unipolar laser emitting at 14.5 μm with 2.5% tunability
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高功率 GaAs/AlGaAs 量子喷泉单极激光器，发射波长为 14.5 μm，可调性为 2.5%
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
P. Bois
中科院分区：
文献类型：
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作者：
O. Gauthier;F. Julien;S. Cabaret;J. Lourtioz;G. Strasser;E. Gornik;M. Helm;P. Bois
我们演示了一个高功率量子喷泉单极激光器依赖于光泵GaAs/AlGaAs量子威尔斯阱子带间发射的操作。每个面的收集功率在20 K时为2.3 W，在120 K时为1.5 W，这在低温下转化为每个面6.6 W的光功率，说明了收集效率。最高工作温度为135 K。我们还证明，通过简单地调节泵浦波长，可以使激射波长达到Δλ/λ = 2.5%。
We demonstrate operation of a high-power quantum fountain unipolar laser relying on intersubband emission in optically pumped GaAs/AlGaAs quantum wells. The collected power per facet is as large as 2.3 W at 20 K and 1.5 W at 120 K, which translates into 6.6 W optical power per facet at low temperature accounting for collection efficiency. The maximum operating temperature is 135 K. We also demonstrate that the lasing wavelength can be tuned by as much as Δλ/λ≈2.5% simply by tuning the pump wavelength.