Low-threshold injectorless quantum cascade laser with four material compositions |
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| Authors: | Katz S. Boehm G. Amann M.-C. |
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| Affiliation: | Walter-Schottky Inst., Techische Univ. Munchen, Garching; |
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| Abstract: | A new design for an injectorless quantum cascade laser resulting in a threshold current density of 0.57 kA/cm2 at 300 K and a maximum operation temperature of 360 K is presented. The active zone is realised in the strain compensated material system Al(In)As-(Ga)InAs using AlAs barriers for increasing the T0 and InAs for strain compensation. Additionally the laser performance was improved compared to previous work. |
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