Characteristics of passive Q-switching laser pulse as a function of cavity decay rate

Abstract

The characteristics of passive Q- switching laser pulse have been simulated as a function ofcavity decay rate ( γc ). The simulation performed by numerical solution for passive Q-switching rateequations model for Cr:YSO ( 2 5Cr4+ : Y SiO ) saturable absorber with ruby laser. This study showsthat the photon number, energy, and duration for output laser pulse are decreasing when the cavitydecay rate increasing. The study explained that to a high dissipation of photons by absorption,reflection and scattering mechanisms per round-trip transit time in the cavity.