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Kavian S, Sheikhi M M, Baghban H. Analysis the Effect of Injection Locking on Dual-wavelength Mid-Infrared Quantum Cascade Lasers. ICOP & ICPET _ INPC _ ICOFS 2018; 24 :397-400
URL: http://opsi.ir/article-1-1499-en.html
URL: http://opsi.ir/article-1-1499-en.html
1- University of Tabriz
Abstract: (2381 Views)
The analysis and modeling of injection locking effect on dual-wavelength mid-infrared quantum cascade lasers has been presented in this article. Based on analytical solution of the rate equations, the dynamics of optically injection-locked dual-wavelength quantum cascade lasers is described. It is found that strong injection level of λ1 enhances the modulation bandwidths compared to the free-running case (2.34 GHz), which are 6.33 GHz, 15.04 GHz, and 28.63 GHz for injection ratios of -10 dB, 0 dB, and 10 dB, respectively. A large LEF reduces the bandwidth and increase the peak magnitude. Calculations demonstrate that the output power can be enhanced with a high injection ratio. Also, the threshold current of λ1 enhances about 1.8 times with a high injection ratio of λ2.
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