Simulation of Active Medium Emission Cross Section Influence on Passive Q-switching Laser Pulse Characteristics

Volume 18 No 5 (2020)

Abdullh Saiwan Majli, Abdul-Kareem Mahdi Salih

DOI: 10.14704/nq.2020.18.5.NQ20169

Abstract

Rate equations model was solved numerically by Runge-Kutta-Fehlberg method using computer software program prepared to simulate the effect of the active medium emission cross section on passive Q-switching pulse characteristics. We reported the passive Q-switching of Nd: YVO4 laser with the Cr+4: Y SO. The study shows the duration, energy, power, maximum photons density, initial and final inversion of population are decrement as a function of active medium emission cross section.

Keywords

Laser, High Power Pulses, Passive Q-switching.

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