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哈尔滨工业大学 可调谐激光技术国家级重点实验室,黑龙江 哈尔滨,150001
纸质出版日期:2016-06-05,
收稿日期:2016-01-30,
修回日期:2016-03-23,
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崔铮, 陈毅, 姚宝权等. 基于多层石墨烯可饱和吸收体的被动调QHo:YAG激光器[J]. 发光学报, 2016,37(6): 696-700
CUI Zheng, CHEN Yi, YAO Bao-quan etc. Passively Q-switched Ho:YAG Laser with Multilayer Graphene-based Saturable Absorber[J]. Chinese Journal of Luminescence, 2016,37(6): 696-700
崔铮, 陈毅, 姚宝权等. 基于多层石墨烯可饱和吸收体的被动调QHo:YAG激光器[J]. 发光学报, 2016,37(6): 696-700 DOI: 10.3788/fgxb20163706.0696.
CUI Zheng, CHEN Yi, YAO Bao-quan etc. Passively Q-switched Ho:YAG Laser with Multilayer Graphene-based Saturable Absorber[J]. Chinese Journal of Luminescence, 2016,37(6): 696-700 DOI: 10.3788/fgxb20163706.0696.
报道了2μm被动调
Q
的Ho:YAG激光器
该激光器采用Tm
3+
光纤激光器作为泵浦源
使用多层石墨烯作为可饱和吸收体。在连续波激光输出模式下
当泵浦功率为4.2W时
获得了750mW激光输出
输出激光中心波长为2.09μm
斜率效率为29.6%。在连续波激光器谐振腔中插入多层石墨烯可饱和吸收体并调整谐振腔
获得了脉冲激光输出。当泵浦功率为4.2W时
获得最小脉冲宽度3.1μs、重复频率66.6kHz的脉冲激光输出
其最大平均输出功率为170mW
斜率效率为12.6%
光束质量因子
M
x
2
=1.15
M
y
2
=1.12。
A 2 μm passively
Q
-switched (PQS) Ho:YAG laser pumped by a Tm
3+
fiber laser was demonstrated with a multilayer graphene as the saturable absorber. In the continuous wave (CW) mode
a 2.09 μm laser with the output power of 750 mW was obtained at the incident pump power of 4.2 W
corresponding to the slope efficiency of 29.6%. By inserting a multilayer graphene as the saturable absor
ber and adjusting the cavity
we achieved passively
Q
-switched laser pulses. The minimum pulse duration was obtained at the pump power of 4.2 W with the repetition rate of 66.6 kHz and the pulse width of 3.1 μs. The maximum output power of 170 mW was achieved
corresponding to the slope efficiency of 12.6%. The beam quality factors are
M
x
2
=1.15 and
M
y
2
=1.12
respectively.
固体激光器被动调QHo:YAG多层石墨烯
solid-state laserspassively Q-switchedHo:YAGmultilayer graphene
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