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Theory of Mitigate Temperature Effect on the Equilibrium Point in Vertical Cavity Surface Emitting Lasers

    Hisham K. Hisham

Kirkuk University Journal-Scientific Studies, 2019, Volume 14, Issue 2, Pages 53-71
10.32894/kujss.2019.14.2.4

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Abstract

This paper presents a way to mitigate the influence of temperature effects on the equilibrium point (Q-point) of vertical cavity surface emitting lasers (VCSELs) by investigating the effect of laser injection current (Iinj) and dc-bias level (Ibias) numerically using MATHCAD software. Results show that, by changing temperature 50 oC (i.e. from 10 to 60) with Iinj = 3Ith and Ibias = 0, the photons density (P(t)) has decreased from 1.636 × 1016 cm-3 to 0.733 × 1016 cm-3, the carrier density (N(t)) has increased from 2.367 × 1018 cm-3 to 2.669 × 1018 cm-3 and the laser output power (Pout) has decreased from the 2.366 mW to the 1.025 mW. In contrast, by increasing the Iinj from 3Ith to 5Ith and the Ibias from 0 to 1.5Ith, the rate of the decreasing in the P(t) and in the Pout have reduced more than 25%. %25.
Keywords:
    Equilibrium point semiconductor lasers vertical cavity surface emitting lasers temperature effect
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(2019). Theory of Mitigate Temperature Effect on the Equilibrium Point in Vertical Cavity Surface Emitting Lasers. Kirkuk University Journal-Scientific Studies, 14(2), 53-71. doi: 10.32894/kujss.2019.14.2.4
Hisham K. Hisham. "Theory of Mitigate Temperature Effect on the Equilibrium Point in Vertical Cavity Surface Emitting Lasers". Kirkuk University Journal-Scientific Studies, 14, 2, 2019, 53-71. doi: 10.32894/kujss.2019.14.2.4
(2019). 'Theory of Mitigate Temperature Effect on the Equilibrium Point in Vertical Cavity Surface Emitting Lasers', Kirkuk University Journal-Scientific Studies, 14(2), pp. 53-71. doi: 10.32894/kujss.2019.14.2.4
Theory of Mitigate Temperature Effect on the Equilibrium Point in Vertical Cavity Surface Emitting Lasers. Kirkuk University Journal-Scientific Studies, 2019; 14(2): 53-71. doi: 10.32894/kujss.2019.14.2.4
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