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Effective-mass superlattice as an injector in quantum cascade lasers

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Abstract

In this paper, we have developed new design of the injector for quantum cascade structures based on the effective mass superlattice. The transmission spectra of the conventional injector and effective-mass injector have been compared. Advantage of the effective-mass injector is more uniform spectrum of pass-band. This feature allows to improve controllability of the quantum cascade laser, to increase stability of its operation and to decrease sensitivity to noise in applied voltage bias. Also, we have computed geometrical parameters for effective-mass injector which is appropriate to provide inverted population in existing quantum-cascade lasers. Such injector should be characterized by 15–25 numbers of layers with widths of layers up to 2 nm.

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Authors and Affiliations

  1. Lab “Photonics”, Kharkov National University of Radio Electronics, Lenin Ave., 14, Kharkov, 61166, Ukraine

    Mykhailo V. Klymenko, Ivan M. Safonov, Oleksiy V. Shulika & Igor A. Sukhoivanov

  2. Institute of Optoelectronics, Ulm University, Ulm, Germany

    Ivan M. Safonov & Rainer Michalzik

  3. Departamento de Electronica, FIMEE, University Guanajuato, Guanajuato, Mexico

    Igor A. Sukhoivanov

Authors
  1. Mykhailo V. Klymenko
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  2. Ivan M. Safonov
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  3. Oleksiy V. Shulika
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  4. Igor A. Sukhoivanov
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  5. Rainer Michalzik
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Correspondence to Mykhailo V. Klymenko.

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Klymenko, M.V., Safonov, I.M., Shulika, O.V. et al. Effective-mass superlattice as an injector in quantum cascade lasers. Opt Quant Electron 40, 197–204 (2008). https://doi.org/10.1007/s11082-007-9153-x

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  • DOI: https://doi.org/10.1007/s11082-007-9153-x

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