Passively <em>Q</em>-switched Nd: YVO<sub>4</sub> 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：
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DING Rong, CHANG Jian-hua, KONG Chun-xia, et al. Passively Q-switched Nd: YVO₄ Laser Based on Graphene Quantum Dots. [J]. Chinese Journal of Luminescence 41(1):63-70(2020)
DOI：

DING Rong, CHANG Jian-hua, KONG Chun-xia, et al. Passively Q-switched Nd: YVO₄ Laser Based on Graphene Quantum Dots. [J]. Chinese Journal of Luminescence 41(1):63-70(2020) 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,4,激光器，实现了1 063.5 nm处的被动调,Q,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,4, laser, a passively ,Q,-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

固体激光器脉冲激光石墨烯量子点可饱和吸收体被动调Q

Keywords

solid state laserpulse lasergraphene quantum dotssaturable absorberpassively Q-switched

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School of Instrumentation and Electronics, North University of China

School of Science, Changchun University of Science and Technology

University of Chinese Academy of Sciences

State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

College of Physics Electronic Engineering, Hainan Normal University

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

DOI：10.3788/fgxb20204101.0063

摘要

Abstract

关键词

Keywords

references

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