Abstract:In this paper, based on the coupled mode and carrier rate equations, the effects of different types of spatial chirped grating on a laser with distributed feedback (DFB), λ/4 phase shift, uniform injection current on the laser and high reflection in the rear facet were simulated and investigated for the first time. By using dynamic analysis with improved finite difference time domain (FDTD) numerical method in a single mode DFB laser with two way linear spatial chirped grating, the extinction ratio (ER) and hi… Show more
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