Performance of large-area few-layer graphene saturable absorber in femtosecond bulk laser

Performance of large-area few-layer graphene saturable absorber in femtosecond bulk laser
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大面积几层石墨烯可饱和吸收体在飞秒体激光器中的性能

DOI:
10.1063/1.3672213
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发表时间:
2011-12
影响因子:
4
通讯作者:
Yang, Ke-Jian
Yang, Ke-Jian
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Xu, Jin-Long;Li, Xian-Lei;He, Jing-Liang;Hao, Xiao-Peng;Wu, Yong-Zhong;Yang, Ying;Yang, Ke-Jian

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利用改进的液相剥离法制备了1-10层大面积石墨烯片,实现了二极管泵浦Yb:KGW激光器的锁模运转。在1031.1 nm处产生了近变换极限的428 fs脉冲,输出功率为504 mW,对应于27%的斜率效率和13.8 kW的峰值功率。锁模与自由运转的输出功率比和斜率效率比分别高达93%和100%。该实验为实现低成本、高效率的飞秒体激光器提供了一条可行的途径。
Using large-area graphene sheets of 1-10 layers prepared by the improved liquid phase exfoliation technique, the mode locking operation of a diode-pumped Yb:KGW laser was demonstrated. Near-transform-limited 428 fs pulses were yielded at 1031.1 nm with an output power of 504 mW, corresponding to the slope efficiency of 27% and peak power of 13.8 kW. The output power ratio and the slope efficiency ratio of mode locking to free running were as high as 93% and 100%, respectively. This demonstration may open a proper way to achieve low-cost and efficient femtosecond bulk laser.
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