2015
DOI: 10.1063/1.4913391
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On the modified active region design of interband cascade lasers

Abstract: Articles you may be interested inEight-band k·p modeling of InAs/InGaAsSb type-II W-design quantum well structures for interband cascade lasers emitting in a broad range of mid infrared J. Appl. Phys. 114, 223519 (2013); 10.1063/1.4843076 onHigh-peak-power strain-compensated GaInAs/AlInAs quantum cascade lasers ( λ ∼ 4.6 μ m ) based on a slightly diagonal active region design Appl. Phys. Lett. 93, 251110 (2008); 10.1063/1.3054165Mid-infrared In As ∕ Al Ga Sb superlattice quantum-cascade lasers Appl. Phys. Lett… Show more

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Cited by 6 publications
(5 citation statements)
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“…Despite the advantage of flexibility for band gap engineering, the broken-gap alignment suffers from reduction of the oscillator strength, determining the gain of the medium. Substantial work was required, comprising the methods of optical spectroscopy, in order to understand * corresponding author the complex band structure of multilayered ICLs [10][11][12]. As a result of extensive studies, the ICLs exhibit a stateof-the-art performance in the spectral region of midinfrared [13].…”
Section: Introductionmentioning
confidence: 99%
“…Despite the advantage of flexibility for band gap engineering, the broken-gap alignment suffers from reduction of the oscillator strength, determining the gain of the medium. Substantial work was required, comprising the methods of optical spectroscopy, in order to understand * corresponding author the complex band structure of multilayered ICLs [10][11][12]. As a result of extensive studies, the ICLs exhibit a stateof-the-art performance in the spectral region of midinfrared [13].…”
Section: Introductionmentioning
confidence: 99%
“…AlSb/InAs/GaInSb/InAs/GaInSb/InAs/AlSb. This type of active region has been used in ICLs emitting in the mid infrared in order to enhance the transition oscillator strength 28 or to increase the spectral tunability range. 29 We choose a system consisting of a triple asymmetric quantum well, because in such a case the wave function is more susceptible to the influence of the electric field.…”
Section: © 2017 Author(s) All Article Content Except Where Otherwismentioning
confidence: 99%
“…The first studied design utilizes a standard W-shaped band alignment, whereas the second one benefits from a triple QW design. 16,17) Preliminary design considerations of similar structures with respect to the passive mode-locking have been recently published. 18) Based on these results two welloptimized designs with respect to the oscillator strength tuning by external electric field were selected for fabrication, processing and optical study.…”
mentioning
confidence: 99%
“…One can notice that for the T-QW sample the ground state transition has larger OS (by 40%) compared to the W-QW, which is due to increased overlap integral in the triple QW. 16) In order to determine if the designed samples are suitable for an active region of passively mode-locked ICLs we measured the PR spectra as a function of external electric field (employed in order to simulate the conditions occurring in an operational device). Figures 3(a) and 3(c) show the results of PR measurements for three values of electric field for samples W-QW and T-QW, respectively.…”
mentioning
confidence: 99%