Study on glass structure and laser damage to develop 10kW fiber laser

明确激光损伤的来源，降低激光功率是实现高功率光纤激光器的重要手段。研究了玻璃纤维结构与激光诱导缺陷的关系，探索了抑制激光损伤的方法。澄清了影响激光功率的缺陷，优化了玻璃纤维中掺杂剂的浓度。我们还发现了抑制激光损伤的玻璃处理方法。

It is important for realizing the high-power fiber laser to clarify the origin of the laser damage which reduces the laser power. We investigated the correlation between the fiber glass structure and the laser induced defects, and searched the method suppressing the laser damage. We clarified the defects which reduces the laser power, and optimized concentrations of dopants in the fiber glass. We also found the glass treatment method to suppress the laser damage.