Browsing by Author "Kermaoui, A."

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    SPECTROSCOPIC PROPERTIES AND JUDD-OFELT INTENSITY PARAMETERS OF Er3+ DOPED OXYCHLOROPHOSPHATE GLASSES FOR LASER APPLICATIONS
    (University of Eloued جامعة الوادي, 2018-02-05) Amrouch, S.; Chalal, M.; Kermaoui, A.; Oulebsir, A.; Zaiba, S.; Zanane, H.; Djouama, T.; Abdedou, N.; Ziane, O.; Lamrous, O.
    A new series of Er3+ doped oxychlorophosphate glasses (NKAZCl) with the chemical composition based on (100-x) (NaPO3-KH2PO4–Al2O3-ZnCl2), with different xEr3+molar ratio (0.5≤x≤2), were prepared by conventional melting quenching method. The spectroscopic properties of proposed glasses are investigated by applied Judd-Ofelt theories to calculate the oscillator strengths Scal, the intensity parametes (2Ω ,4Ω ,6 Ω) .The absorption and emission cross section(σabs , (λ) σem (λ) respectively, and also the optical gain cross section parameter, at 1.53μm of 4 І13/2 4 І 15/ 2 transition of Er3+ ion are calculated by using Beer-Lambert law and the McCumber theory
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    Study Of The Propagation Of Short Pulse Laser With Cavity Using Numerical Simulation Software
    (University of Eloued جامعة الوادي, 2012-01-01) Terniche, S.; Kellou, A.; Kermaoui, A.; Si Fodil, R.; Becheker, R.
    The purpose of this representation is to show the potentialities (Computational Time, access to the dynamic and feasibility of systematic studies) of the numerical study of the nonlinear dynamics in laser cavity, assisted by software. We will give as an example, one type of cavity completely fibered composed of several elements and then studying the physical parameters of a pulse propagating into this cavity, determining its characteristics at the output. The results are interesting but we also projects to verify them experimentally by making assemblies similar to this type of cavities.