基于掺铒氟化物光纤的2.8 μm可调谐激光输出

doi:10.3969/j.issn.1007-5461.2024.02.009

量子电子学报 ›› 2024, Vol. 41 ›› Issue (2): 269-277.doi: 10.3969/j.issn.1007-5461.2024.02.009

基于掺铒氟化物光纤的2.8 μm可调谐激光输出

佟亮 , 黄海波 , 文宇轩 , 陈颂元 , 陶俊哲 , 叶珊珊 , 郑子其 , 王洋洋 , 黄松 , 高伟清 *

( 合肥工业大学物理学院光学工程系, 安徽合肥 230601 )

收稿日期:2022-02-18 修回日期:2022-03-14 出版日期:2024-03-28 发布日期:2024-03-28
通讯作者: E-mail: gaoweiqing@hfut.edu.cn E-mail:E-mail: gaoweiqing@hfut.edu.cn
作者简介:佟亮 ( 1993 - ), 吉林长春人, 研究生, 主要从事中红外掺铒光纤激光器方面的研究。E-mail: 2019111109@mail.hfut.edu.cn
基金资助:
国家自然科学基金(61875052, 62105087, 62105088, 61905059), 安徽省重点研发计划(202104a07020010), 安徽省自然科学基金 (2108085QF282, 1908085QF273), 中央高校基本科研业务费专项资金(JZ2021HGTA0145, JZ2020HGTB0065, JZ2021HGQA0255, JZ2021HGTA0148), 国家级大学生创新创业训练计划项目 (202110359079)

Mid‑infrared 2.8 μm tunable lasing based on erbium‑doped fluoride fiber

TONG Liang , HUANG Haibo , WEN Yuxuan , CHEN Songyuan , TAO Junzhe , YE Shanshan , ZHENG Ziqi , WANG Yangyang , HUANG Song , GAO Weiqing *

( Department of Optical Engineering, School of Physics, Hefei University of Technology, Hefei 230601, China )

Received:2022-02-18 Revised:2022-03-14 Published:2024-03-28 Online:2024-03-28

摘要/Abstract

摘要： 采用高浓度掺杂的掺铒氟化物光纤可以增强铒离子的能量转移上转换过程, 从而产生2.8 μm 波段的中红外激光。铒离子的全波段发射光谱范围覆盖0.5~3.0 μm, 其发射波长与相应能级之间的跃迁相吻合。对铒离子全波段的激光输出开展了实验研究。由于氟化物掺铒光纤的高掺杂浓度, 2.8 μm 激光占据主导地位。当泵浦功率为2~4 W 时, 激光输出在2714~2784 nm 范围内可调谐, 这是由增益竞争和腔内选择性以及非均匀加宽效应造成的。当泵浦功率增加到3 W 以上时, 可以观察到激光的谱分裂现象。实验获得了2.8 μm 波段的高稳定中红外激光, 最大输出功率为0.7 W, 斜率效率为12%。

关键词: 激光技术, 中红外激光, 掺铒氟化物光纤, 激光调谐, 光谱分裂

Abstract: Heavily erbium-doped fluoride fiber is used to enhance the process of energy transfer upconversion between erbium ions, leading to the generation of mid-infrared lasing around 2.8 μm. The fullband emission covering all the emitting lines of erbium ion from 0.5 μm to 3.0 μm is observed, and the emitting wavelengths agree well with the transitions between the corresponding energy levels. The full band lasing output of erbium ion is experimentally studied. It is found that 2.8 μm lasing is dominant due to the high doping level. With the pump power changing from 2 W to 4 W, the peak wavelength of 2.8 μm lasing could be tuned in the range of 2714-2784 nm, which is caused by the gain competition combined with the selectivity of cavity and the effect of inhomogeneous broadening. With the pump power increasing above 3 W, the spectral splitting of lasing can be observed. The high stable mid-infrared lasing at 2.8 μm is obtained with the maximum output power of 0.7 W and slope efficiency of ~12%.

Key words: laser techniques, mid-infrared laser, erbium-doped fluoride fiber, laser tuning, spectral splitting

中图分类号:

TN248

佟亮 , 黄海波 , 文宇轩 , 陈颂元 , 陶俊哲 , 叶珊珊 , 郑子其 , 王洋洋 , 黄松 , 高伟清 . 基于掺铒氟化物光纤的2.8 μm可调谐激光输出[J]. 量子电子学报, 2024, 41(2): 269-277.

TONG Liang , HUANG Haibo , WEN Yuxuan , CHEN Songyuan , TAO Junzhe , YE Shanshan , ZHENG Ziqi , WANG Yangyang , HUANG Song , GAO Weiqing . Mid‑infrared 2.8 μm tunable lasing based on erbium‑doped fluoride fiber[J]. Chinese Journal of Quantum Electronics, 2024, 41(2): 269-277.

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基于掺铒氟化物光纤的2.8 μm可调谐激光输出

Mid‑infrared 2.8 μm tunable lasing based on erbium‑doped fluoride fiber

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