Studies of the degradation mechanisms in high power diode lasers

Abstract

The main failure mechanisms of high power diode lasers such as material defects, mirror damage and solder related failures as well as to methods which significantly suppress the occurrence of catastrophic failure and solder related failures are investigated in this paper. Meanwhile, in order to obtain the lifetime data of high power QCM cm-bar arrays, we have set up an automated diode array reliability experiment to examine the characteristics of high power QCW cm-bar arrays over time, and aging test results up to 2.0×109 shots at 25°C will be reported.