Study on Soldering Technology for Laser Rod by Finite Element Method

With the increase demand of high power, high efficient and good beam quality solid-state lasers, thermal management become more important for the lasers. Thermal resistance between laser crystal and heat sink can be effectively reduced by soldering technology, but the technology might induce huge heat stress. In order to solve the problem, finite-element method was used to analysis the stress and thermal resistance. Moreover, a practicable structure was also designed and calculated in this study.