激光技术, 2014, 38 (3): 347, 网络出版: 2014-06-30
透镜组耦合793nm LD抽运掺Tm3+光纤激光器
Tm3+-doped fiber lasers pumped by double lens coupling 793nm LD
激光器 掺Tm3+光纤激光器 半导体激光器 透镜组耦合系统 热效应 lasers Tm3+-doped fiber laser laser diode double lens coupling system thermal effect
摘要
为了实现2μm激光高效输出, 采用793nm激光二极管端面抽运掺Tm3+光纤激光器的方法设计了抽运光耦合系统, 分析了掺Tm3+光纤激光器的交叉弛豫效应及热效应, 并进行了相关的实验研究。结果表明, 获得耦合系统的耦合效率为84%; 当入纤抽运光功率为70W时, 获得34W激光输出, 斜率效率为59%, 中心波长为2001.2nm, 光束质量M2≤1.2。该研究结果对掺Tm3+光纤激光器的设计具有指导意义。
Abstract
To achieve 2μm laser output, 793nm LD face-pumping Tm3+-doped fiber laser was adopted. Double lens coupling system was designed. Cross relaxation of Tm3+-doped fiber laser and thermal effect were analyzed, and then the related experiments were carried out. The results show that coupling efficiency of coupling system is 84%. When the pump power is 70W, the output power is 34W with slop efficiency of 59%, central wavelength of 2001.2nm and M2 of less than 1.2. The results are helpful to design Tm3+-doped fiber lasers.
张茂, 任钢, 刘文兵, 夏惠军, 刘全喜, 钟鸣. 透镜组耦合793nm LD抽运掺Tm3+光纤激光器[J]. 激光技术, 2014, 38(3): 347. ZHANG Mao, REN Gang, LIU Wenbing, XIA Huijun, LIU Quanxi, ZHONG Ming. Tm3+-doped fiber lasers pumped by double lens coupling 793nm LD[J]. Laser Technology, 2014, 38(3): 347.