High power mid-infrared (lambda greater than or similar to-5 mu m) quantum cascade lasers operating above room temperature
High power mid-infrared (lambda greater than or similar to-5 mu m) quantum cascade lasers operating above room temperature
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DOI：
10.1063/1.115741
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发表时间：
1996-06-24
影响因子：
4
通讯作者：
Cho, AY
中科院分区：
文献类型：
--
作者：
Faist, J;Capasso, F;Cho, AY
报道了中红外量子级联激光器在高达T=320 K温度下的高功率工作。通过结合低掺杂、漏斗注入器和三井垂直过渡活跃区的设计，优化了高温下的增益。采用分子束外延生长的p包覆层来优化散热。在300 K和波长λ =5.2 μ m下，器件的峰值脉冲光功率为200 mW，平均功率为6 mW，并且可以在140 K的连续波中工作。(C) 1996年美国物理研究所。
The high power operation of mid-infrared quantum cascade lasers at temperatures up to T=320 K is reported. Gain at high temperature is optimized by a design combining low doping, a funnel injector, and a three-well vertical transition active region. A molecular beam epitaxy grown InP top cladding layer is also used to optimize heat dissipation. A peak pulsed optical power of 200 mW and an average power of 6 mW are obtained at 300 K and at a wavelength lambda=5.2 mu m. The devices also operate in continuous wave up to 140 K. (C) 1996 American Institute of Physics.