Continuous-wave and Pulsed Laser Performance of Yb∶LuAG Single Crystal Fiber

Xiao-fei MA; Tao WANG; Jian ZHANG; Yan-ru YIN; Bai-tao ZHANG; Zhi-tai JIA

doi:10.37188/CJL.20210332

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Continuous-wave and Pulsed Laser Performance of Yb∶LuAG Single Crystal Fiber

Synthesis and Properties of Materials | 更新时间：2022-01-14

- Continuous-wave and Pulsed Laser Performance of Yb∶LuAG Single Crystal Fiber
  增强出版
- Chinese Journal of Luminescence Vol. 43, Issue 1, Pages: 42-50(2022)
- 作者机构：
  
  1.山东大学　晶体材料国家重点实验室，山东　济南　250100
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(51502157;62105181);Key Research and Development Program of Shandong Province(2018CXGC0410);Young Scholars Program of Shandong University(2018WLJH66);Qingdao Postdoctoral Applied Research Project
- DOI：10.37188/CJL.20210332
  CLC：
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Xiao-fei MA, Tao WANG, Jian ZHANG, et al. Continuous-wave and Pulsed Laser Performance of Yb∶LuAG Single Crystal Fiber. [J]. Chinese Journal of Luminescence 43(1):42-50(2022)
DOI：

Xiao-fei MA, Tao WANG, Jian ZHANG, et al. Continuous-wave and Pulsed Laser Performance of Yb∶LuAG Single Crystal Fiber. [J]. Chinese Journal of Luminescence 43(1):42-50(2022) DOI： 10.37188/CJL.20210332.

摘要

单晶光纤是具有准一维结构的功能晶体材料，结合了体块单晶优异的物化性能和传统光纤材料比表面积大的结构优势，是一种极具潜力的激光增益介质。目前单晶光纤激光的研究主要集中于连续激光输出，关于脉冲激光性能的研究相对较少。我们采用微下拉法(μ-PD)制备的Yb∶LuAG单晶光纤(SCF)作为增益介质，获得了输出功率大于4 W、斜效率21.66%、光束质量因子,M,2,接近于1的连续激光输出。在此基础上，采用MoTe,2,作为可饱和吸收体，实现了Yb∶LuAG SCF最高单脉冲能量3.39 μJ的被动调,Q,脉冲激光输出。该工作为Yb∶LuAG SCF在全固态高功率连续和脉冲激光器中的应用提供了参考。

Abstract

Single crystal fiber is a kind of functional crystal material with quasi-one-dimensional structure, combining the excellent physical and chemical properties of bulk crystal with the structural advantages of large specific surface area of traditional optical fiber materials, which makes it a potential laser gain medium. At present, the research on single crystal fiber laser mainly focuses on continuous-wave laser output, while the research on its pulsed laser performance is relatively few. With Yb∶LuAG single crystal fiber (SCF) prepared by micro-pull-down method(μ-PD) as the gain medium, a continuous-wave laser output of more than 4 W with a slope efficiency of 21.66% was obtained. The beam quality factor ,M,2, is close to 1. On this basis, the linear optical properties of saturable absorber(SA) MoTe,2, were tested, and the nonlinear saturable absorption characteristics at 532 nm and 1 064 nm were verified. Finally, a passive ,Q,-switched Yb∶LuAG single crystal fiber pulsed laser output with the highest single pulse energy of 3.39 μJ was realized. This work provides a reference for the application of Yb∶LuAG SCF in all-solid-state high-power continuous-wave and pulsed lasers.

关键词

单晶光纤Yb∶LuAG脉冲激光MoTe2被动调Q

Keywords

single crystal fiberYb∶LuAGpulsed laserMoTe2passive Q-switched

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China State Key Lab of Crystal Materials， Shandong University

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