Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30075
Performance Analysis of Quantum Cascaded Lasers

Authors: M. B. El_Mashade, I. I. Mahamoud, M. S. El_Tokhy


Improving the performance of the QCL through block diagram as well as mathematical models is the main scope of this paper. In order to enhance the performance of the underlined device, the mathematical model parameters are used in a reliable manner in such a way that the optimum behavior was achieved. These parameters play the central role in specifying the optical characteristics of the considered laser source. Moreover, it is important to have a large amount of radiated power, where increasing the amount of radiated power represents the main hopping process that can be predicted from the behavior of quantum laser devices. It was found that there is a good agreement between the calculated values from our mathematical model and those obtained with VisSim and experimental results. These demonstrate the strength of mplementation of both mathematical and block diagram models.

Keywords: Quantum Cascaded Lasers (QCLs), Modeling, Block Diagram Programming, Intersubband transitions

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1048


[1] M. Razeghi and S. Slivken, Opto Electronics Review, 11(2),85,(2003).
[2] C. Gmachl, H. M. Ng, S. N. G. Chu, and A. Y. Cho, Applied Physics Letters, 77(23), (2000).
[3] L. Ajili, G. Scalari, D. Hofstetter, M. Beck, J. Faist, H. Beere, G. Davies, E. Linfield and D. Ritchie, Electronics Letters, 38(25), (2002).
[4] G. Duxbury, N. Langford, M. T. McCulloch and S. Wright," Quantum cascade semiconductor infrared and far-infrared lasers: from trace gas sensing to non-linear optics", Chem. Soc. Rev., pp. 921 - 934, (2005).
[5] D. Zhang, E. Dupont, R. Q. Yang, H. C. Liu, C.-H. Lin, M. Buchanan, and S. S. Pei, Optics Express, 1(4), (1997).
[6] C. Gmachl, A. Tredicucci, F. Capasso, A. L. Hutchinson, D. L. Sivco, J. N. Baillargeon, and A. Y. Cho, Applied Physics Letters, 72(24), (1999).
[7] Federico Capasso, Alessandro Tredicucci, Claire Gmachl, Deborah L. Sivco, Albert L. Hutchinson, Alfred Y. Cho, and Gaetano Scamarcio, IEEE Journal of Selected Topics In quantum electronics, 5(3), (1999).
[8] G. Scalari," Magneto-spectroscopy and development of terahertz quantum cascade lasers", These, presenteea la Faculte des Sciences de l'Universite de Neuchatel pour l'obtention du grade de Docteures Sciences, Neuchatel, (2005).