利用抗共振环实现稳定的BDN被动锁模  

Realization of Stable Passive Mode-locking in BDN by Using Anti-Resonant Ring

作　　者：姚关清[1] 吴逢铁[1] 

机构地区：[1]华侨大学信息科学与工程学院,福建泉州362011

出　　处：《华侨大学学报（自然科学版）》2004年第2期137-139,共3页Journal of Huaqiao University(Natural Science)

基　　金：国务院侨务办公室科研基金资助项目 (0 1QZR0 3)

摘　　要：在理论上 ,通过对BDN能级结构的分析并结合速率方程组 ,指出基态驰豫时间为ns量级的BDN染料片实现被动锁模的可能性 .实验上 ,在凸 ARR (抗共振环 )非稳腔结构的脉冲式Nd∶YAG激光器中 ,用BDN作为可饱和吸收体实现被动锁模运转 ,得到平均能量为 2 2 .1mJ,能量起伏为 1.6 %稳定的锁模单脉冲序列 .By analysing energy level structure of BDN dye in combination with rate equations, the authors point out the possibility of realizing passive mode-locking by using BDN dye film with relaxation time of ground state in nanosecond magnitude. In pulsed Nd∶YAG laser of convex anti-resonant ring (ARR) unstable resonator structure, passive mode-locked operation was realized by using BDN as saturable absorber. The stable mode-locked single pulse train with average energy of 22.1 mJ and energy fluctuation of 1.6% were obtained.

关 键 词：抗共振环 BDN染料片 激发态吸收 被动锁模 饱和光强 

分 类 号：TS193.21[轻工技术与工程—纺织化学与染整工程] TN248.35[轻工技术与工程—纺织科学与工程]