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Thermal effects of the Tm:YAP crystal and the ZGP crystal that used in 5W Mid-infrared solid-state laser are the important factor which affects the laser output characteristic and the reliability. Starting with the thermal conduction function, Tm:YAP and ZGP crystals thermal effects simulation models are build by using finite element simulation technology, the numerical value of the highest temperature...
We showed a detailed thermal simulation of a high power flip-chip packaged LED, simulation results show that the junction temperature of the LED is more sensitive to the adhesive layer material between the Si substrate and the 1000μm thick Cu heatsink, and less sensitive to the bonding ball material and the heatsink material. Furthermore, three groups of aging tests were conducted on this type of...
High power laser diodes have found wide spread applications as pump sources for solid state lasers or in direct material processing. Due to the high electrical and optical power densities in the laser structures the reliability is still questionable. We report on lifetime testing of a high power cm-bar arrays using an automated diode array reliability experiment. This computer controlled setup operates...
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