Volume 24 -                   ICOP & ICPET _ INPC _ ICOFS 2018, 24 - : 397-400 | Back to browse issues page

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Analysis the Effect of Injection Locking on Dual-wavelength Mid-Infrared Quantum Cascade Lasers
Somaye Kavian * 1, Mohammad Mohsen Sheikhi1 , Hamed Baghban1
1- University of Tabriz
Abstract:   (2029 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.
Keywords: Injection locking, Quantum cascade laser, Modulation bandwidth
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Type of Study: Research | Subject: Special
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