Abstract
Study of initial transmission effect on performance of saturable absorber material with Er+3 doped fiber laser was studied. Cr+4: YAG used as a saturable absorber (SA) in the study. Software computer program buildup in this study for numerical solving of rate equations model by Rung - Kutta –Fehlberg method. The study reported that the maximum optical bleaching, Threshold population inversion density are occurs at earlier buildup time of passive Q-switched, and the pulse reaches high power whenever SA characterized by low initial transmission. The study explains that related to the effect of SA initial transmission on the number density of photons feedback in resonator of laser system.
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