对撞增强腔和LiF晶体实现稳定的被动锁模  

The Generation of the Stable Passive Mode-Locking by Using Colliding Enhanced Resonator and LiF Crystal

作　　者：吴逢铁[1] 张建荣[1] 

机构地区：[1]华侨大学信息科学与工程学院,福建泉州362021

出　　处：《华侨大学学报（自然科学版）》2006年第2期141-143,共3页Journal of Huaqiao University(Natural Science)

基　　金：福建省自然科学基金资助项目(A0410017)

摘　　要：理论分析LiF:F^-_2色心晶体的能级结构,计算其激发态吸收的饱和光强,指出基态恢复时间为纳秒量级的LiF实现被动锁模的可能性．利用对撞增强腔Nd:YAG激光器实现LiF晶体的锁模激光输出,获得平均能量为11．8mJ,稳定性大于98％的锁模单脉冲序列．By theoretic analyzing the energy level structure of the color center and calculating the saturable optical intensity of the excited state absorption, the authors point out the possibility of realizing passive mode-locking by using LiF crystal with the relaxation time of the ground state in nanosecond magnitude. In colliding enhanced resonator Nd s YAG laser, mode-locked laser was realized by using LiF crystal. The single mode-locked pulse train with the average energy of 11.8 mJ and the energy stability over 98 % was obtained.

关 键 词：对撞增强腔 LiF:F2^- 色心晶体 被动锁模 激发态吸收 

分 类 号：TN248.35[电子电信—物理电子学]