Passively <italic style="font-style: italic">Q</italic>-switched Ho:YAG Laser with Multilayer Graphene-based Saturable Absorber

CUI Zheng; CHEN Yi; YAO Bao-quan; DUAN Xiao-ming; SHEN Ying-jie; SHEN Zuo-chun; LU Jian-ye; DAI Tong-yu

doi:10.3788/fgxb20163706.0696

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Passively Q-switched Ho:YAG Laser with Multilayer Graphene-based Saturable Absorber

更新时间：2020-08-12

- Passively Q-switched Ho:YAG Laser with Multilayer Graphene-based Saturable Absorber
- Chinese Journal of Luminescence Vol. 37, Issue 6, Pages: 696-700(2016)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20163706.0696
  CLC： TN24
- Received：30 January 2016，
  
  Revised：23 March 2016，
  
  Published：05 June 2016
- 稿件说明：
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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.

摘要

报道了2μm被动调

的Ho:YAG激光器

该激光器采用Tm

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

=1.15

=1.12。

Abstract

A 2 μm passively

-switched (PQS) Ho:YAG laser pumped by a Tm

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

-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

=1.15 and

=1.12

respectively.

关键词

Keywords

references

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TANG Y L, XU L, WANG M J, et al.. High-power gain-switched Ho:LuAG rod laser [J]. Laser Phys. Lett., 2011, 8(2):120-124.

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MARTINEZ A, SUN Z P. Nanotube and graphene saturable absorbers for fibre lasers [J]. Nat. Photon., 2013, 7(11): 842-845.

CUI Z, YAO B Q, DUAN X M, et al.. Stable passively Q-switched Ho:LuAG laser with graphene as a saturable absorber [J]. Opt. Eng., 2014, 53(12):126112.

YAO B Q, CUI Z, DUAN X M, et al.. A graphene-based passively Q-switched Ho:YAG laser [J]. Chin. Phys. Lett., 2014, 31(7):074204-1-4.

ZHAO T, WANG Y, CHEN H, et al.. Graphene passively Q-switched Ho:YAG ceramic laser [J]. Appl. Phys. B, 2014, 116(4):947-950.

YAO B Q, LI X L, CUI Z, et al.. High-repetition rate passively Q-switched Ho:YLF laser with graphene as a saturable absorber [J]. Opt. Eng., 2015, 54(7):076105.

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Passively Q-switched Ho:YAG Laser with Multilayer Graphene-based Saturable Absorber

DOI：10.3788/fgxb20163706.0696

摘要

Abstract

关键词

Keywords

references