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Single-mode GaAs/AlGaAs quantum cascade microlasers
【摘要】 Single-mode edge emitting GaAs/AlGaAs quantum cascade microlasers at a wavelength of about 11.4 μm were realized by shortening the Fabry-P’erot 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.
【Abstract】 Single-mode edge emitting GaAs/AlGaAs quantum cascade microlasers at a wavelength of about 11.4 μm were realized by shortening the Fabry-P’erot 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.
【Key words】 quantum cascade lasers; GaAs/AlGaAs; single-mode emission; short cavity length;
- 【文献出处】 半导体学报 ,Journal of Semiconductors , 编辑部邮箱 ,2009年11期
- 【分类号】TN304
- 【下载频次】51