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ICOP & ICPET 2015, 21 - : 489-492 Back to browse issues page
Analysis of Modulation Response and Delay Time in Quantum Cascade Lasers
Hossein Reza Yousefvand Dr. *1, Vahid Ahmadi Prof.
Abstract:   (2946 Views)
In this paper, the band structure of a quantum cascade (QC) laser utilizing techniques with both material-dependent effective mass and band non-parabolicity is calculated by self-consistent solution of Schrodinger-Poisson equations, and based on a two-level rate equations model, the carrier and photon dynamics in the structure are analyzed. The results of simulation show that, because of the characteristics of the intersubband transition and ultra-fast lifetimes,the modulation bandwidth of QC Lasers is more than one order of magnitude greater than that of the conventional diode lasers, and QC Laser has non-oscillating response at above threshold conditions.
Keywords: intersubband transitions, modulation response, rate equations, ultra-fast scattering
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Type of Study: Research | Subject: Special
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Yousefvand H R, Ahmadi V. Analysis of Modulation Response and Delay Time in Quantum Cascade Lasers. ICOP & ICPET. 2015; 21 :489-492
URL: http://opsi.ir/article-1-648-en.html

Volume 21 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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