23 December 2017 High-temperature and low-threshold interband cascade lasers at wavelengths longer than <inline-formula< <mml:math display="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML"< <mml:mrow< <mml:mn<6</mml:mn< <mml:mtext<  </mml:mtext< <mml:mi<μ</mml:mi< <mml:mi mathvariant="normal"<m</mml:mi< </mml:mrow< </mml:math< </inline-formula<
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Abstract
InAs-based interband cascade (IC) lasers with improved optical confinement have achieved high-temperature operation with a threshold current density as low as 333    A / cm 2 at 300 K for emission at 6003 nm. The threshold current density is the lowest ever reported among semiconductor midinfrared lasers at similar wavelengths. These InAs-based IC devices lased in pulsed mode at temperatures up to 357 K near 6.28    μ m . A narrow-ridge device was able to operate in continuous-wave mode at temperatures up to 293 K at 6.01    μ m .
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
S. M. Shazzad Rassel, S. M. Shazzad Rassel, Lu Li, Lu Li, Yiyun Li, Yiyun Li, Rui Q. Yang, Rui Q. Yang, James A. Gupta, James A. Gupta, Xiaohua Wu, Xiaohua Wu, Geof C. Aers, Geof C. Aers, } "High-temperature and low-threshold interband cascade lasers at wavelengths longer than <inline-formula< <mml:math display="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML"< <mml:mrow< <mml:mn<6</mml:mn< <mml:mtext<  </mml:mtext< <mml:mi<μ</mml:mi< <mml:mi mathvariant="normal"<m</mml:mi< </mml:mrow< </mml:math< </inline-formula<," Optical Engineering 57(1), 011021 (23 December 2017). https://doi.org/10.1117/1.OE.57.1.011021 . Submission: Received: 20 October 2017; Accepted: 5 December 2017
Received: 20 October 2017; Accepted: 5 December 2017; Published: 23 December 2017
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