Research On Thermal Characteristics About Optical Glass Induced By Repetition Rate Long-Pulsed Laser

The optical glass has an irreplaceable role in the laser system and emission system. This paper established a physical theory model and numerical simulation equation of optical glass induced by repetition rate long-pulsed laser and analyzed damages of thermal stress and heat absorption of K9glass.The papers based on damage theory of K9glass induced by single long pulse laser, analyzed the thermal characteristics of K9glass backing material induced by repetition frequency laser. Numerical simulation is used by MATLAB. And discussed the relationship between the laser damage threshold and laser parameters.The results of the study show that, laser damage threshold will occur regular changes when change the laser pulse number, pulse frequency and the light spot radius, it will decrease when the pulse frequency and pulse number increased.