slugCalculating Threshold Current Density and Output Power of Vertical Cavity Surface Emitting Laser
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2014, Vol 2, Issue 5
Abstract
In this paper, threshold current density and output power of the vertical cavity surface emitting laser is analytically calculated as a function of different electrical and optical parameters, and their interdependency is also studied. Quantum confinement factor and doping density can greatly influence the threshold current, and hence the power, which, in turn, depends on the mirror surface smoothness, i.e., reflectivity. Results suggest that increase of active region dimension enhances threshold current density, which reduces output power level. Increase of doping density increases threshold current at the cost of higher dark current. Hence an optimization is required based on the application point of view.
Authors and Affiliations
Jayati Nandy, Sayan Das, Sourav Das, Mouli Biswas, Arpan Deyasi
Keywords
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