Citation: |
Gao Yu, Liu Junqi, Liu Fengqi, Zhang Wei, Zhang Quande, Liu Wanfeng, Li Lu, Wang Lijun, Wang Zhanguo. Single-mode GaAs/AlGaAs quantum cascade microlasers[J]. Journal of Semiconductors, 2009, 30(11): 114007. doi: 10.1088/1674-4926/30/11/114007
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Gao Y, Liu J Q, Liu F Q, Zhang W, Zhang Quande, Liu W F, Li L, Wang L J, Wang Z G. Single-mode GaAs/AlGaAs quantum cascade microlasers[J]. J. Semicond., 2009, 30(11): 114007. doi: 10.1088/1674-4926/30/11/114007.
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Abstract
Single-mode edge emitting GaAs/AlGaAs quantum cascade microlasers at a wavelength of about 11.4 μm were realized by shortening the Fabry-Perot cavity length. The spacing of the longitudinal resonator modes is inversely proportional to the cavity length. Stable single-mode emission with a side mode suppression ratio of about 19 dB at 85 K for a 150-μm-long device was demonstrated. -
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