Citation: |
Chuncai Hou, Yue Zhao, Jinchuan Zhang, Shenqiang Zhai, Ning Zhuo, Junqi Liu, Lijun Wang, Shuman Liu, Fengqi Liu, Zhanguo Wang. Room temperature continuous wave operation of quantum cascade laser at λ ~ 9.4 μm[J]. Journal of Semiconductors, 2018, 39(3): 034001. doi: 10.1088/1674-4926/39/3/034001
C C Hou, Y Zhao, J C Zhang, S Q Zhai, N Zhuo, J Q Liu, L J Wang, S M Liu, F Q Liu, Z G Wang. Room temperature continuous wave operation of quantum cascade laser at λ ~ 9.4 μm[J]. J. Semicond., 2018, 39(3): 034001. doi: 10.1088/1674-4926/39/3/034001.
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Room temperature continuous wave operation of quantum cascade laser at λ ~ 9.4 μm
doi: 10.1088/1674-4926/39/3/034001
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Abstract
Continuous wave (CW) operation of long wave infrared (LWIR) quantum cascade lasers (QCLs) is achieved up to a temperature of 303 K. For room temperature CW operation, the wafer with 35 stages was processed into buried heterostructure lasers. For a 2-mm-long and 10-μm-wide laser with high-reflectivity (HR) coating on the rear facet, CW output power of 45 mW at 283 K and 9 mW at 303 K is obtained. The lasing wavelength is around 9.4 μm locating in the LWIR spectrum range. -
References
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