Analysis and modeling of ridge waveguide quarterly wavelength shifted distributed feedback laser with three rate equations

Abstract

In this paper, ridge waveguide quarterly wavelength shifted distributed feedback (RW-QWS-DFB) laser was modeled and analyzed. In this behavioral model, some characteristics of the device, such as threshold current, line width, power of output wave, spectrum of output wave, and laser stability in high powers, were investigated in accordance with different physical and geographical parameters such as sizes and structures of the layers. Considering a new proposed algorithm, the analysis of the mentioned structures was performed using transfer matrix method (TMM), the solution of coupled waves and carrier rate equations. The results showed the advantages of some parameters in this structure.

Keywords

distributed feedback laser / transfer matrix method (TMM) / transversal and lateral mode

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Acknowledgements

This work was supported in part by Islamic Azad University.

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg