Passively Q-switched Nd: YVO4 Laser Based on Graphene Quantum Dots

DING Rong; CHANG Jian-hua; KONG Chun-xia; SHI Shao-hang; DAI Rui

doi:10.3788/fgxb20204101.0063

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Passively Q-switched Nd: YVO₄ Laser Based on Graphene Quantum Dots

Device Fabrication and Physics | 更新时间：2020-08-12

- Passively Q-switched Nd: YVO₄ Laser Based on Graphene Quantum Dots
- Chinese Journal of Luminescence Vol. 41, Issue 1, Pages: 63-70(2020)
- 作者机构：
  
  1. 南京信息工程大学江苏省大气环境与装备技术协同创新中心,江苏南京,210044
  2. 南京信息工程大学江苏省气象探测与信息处理重点实验室, 江苏南京 210044
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20204101.0063
  CLC： TN248.1
- Received：31 July 2019，
  
  Revised：03 September 2019，
  
  Published Online：09 September 2019，
  
  Published：05 January 2020
- 稿件说明：
移动端阅览
丁蓉, 常建华, 孔春霞等. 基于石墨烯量子点的被动调Q Nd:YVO4激光器[J]. 发光学报, 2020,41(1): 63-70

DING Rong, CHANG Jian-hua, KONG Chun-xia etc. Passively Q-switched Nd: YVO4 Laser Based on Graphene Quantum Dots[J]. Chinese Journal of Luminescence, 2020,41(1): 63-70
丁蓉, 常建华, 孔春霞等. 基于石墨烯量子点的被动调Q Nd:YVO4激光器[J]. 发光学报, 2020,41(1): 63-70 DOI： 10.3788/fgxb20204101.0063.

DING Rong, CHANG Jian-hua, KONG Chun-xia etc. Passively Q-switched Nd: YVO4 Laser Based on Graphene Quantum Dots[J]. Chinese Journal of Luminescence, 2020,41(1): 63-70 DOI： 10.3788/fgxb20204101.0063.

摘要

采用水热法制备了石墨烯量子点（GQDs）可饱和吸收体（SA）。对GQDs SA的光学特性进行表征，估算出其调制深度为6.9%。将GQDs作为SA应用于二极管端面泵浦Nd:YVO

激光器，实现了1 063.5 nm处的被动调

激光输出。在吸收泵浦功率为9.12 W时，输出脉冲的重复频率为1.64 MHz，脉冲宽度为200 ns，对应的脉冲能量为0.51 J，峰值功率为2.5 W。

Abstract

In this paper

graphene quantum dots (GQDs) saturable absorber (SA) was prepared by hydrothermal method. The optical properties of the GQDs SA was characterized and the modulation depth was calculated to be 6.9%. Using the GQDs SA into diode-end-pumped Nd:YVO

laser

a passively

-switched operation of 1 063.5 nm laser was realized. Pulses as short as 200 ns under a repetition frequency of 1.64 MHz were generated at the absorbed pump power of 9.12 W

implying a pulse energy of 0.51 J with the peak power of 2.5 W.

关键词

Keywords

references

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