人工晶体学报2024，Vol.53Issue(7)：1127-1135,9.
基于石墨烯可饱和吸收体的Er∶YAG被动调Q激光器
Passively Q-Switched Er∶YAG Laser Based on Graphene Saturable Absorber
摘要
Abstract
In this paper,the Er∶YAG passively Q-switched laser using a xenon lamp side-pumping method and based on a graphene saturable absorber was investigated.Firstly,the graphene saturable absorber was successfully prepared by transferring graphene to the Al2O3 substrate,and its properties such as morphology,structure,and chemical state were characterized.In addition,the characteristics of the Er∶YAG passively Q-switched laser based on graphene saturable absorber were studied.The results show that the single pulse energy increases from 0.4 mJ to 7 mJ,the output laser single pulse width decreases from 761.2 ns to 510 ns,and the maximum peak power is 13.7 kW.The central wavelength of the laser is located at 2 935 and 2 945 nm,and the full width at half maximum(FWHM)corresponding to the main wavelength at 2 935 nm is 1.535 nm.The beam quality factors along the x and y directions are 4.45 and 5.76,respectively.This study provides an effective reference for developing lower cost 2.94 μm band Er∶YAG lasers with simple and compact resonant cavity designs.关键词
石墨烯可饱和吸收体/氙灯侧泵/被动调Q/Er∶YAG/～3 µm激光Key words
graphene saturable absorber/xenon lamp side-pumping/passively Q-switched/Er∶YAG/～3 μm laser分类
信息技术与安全科学引用本文复制引用
陈言,张沛雄,权聪,孙敦陆,李真,陈振强..基于石墨烯可饱和吸收体的Er∶YAG被动调Q激光器[J].人工晶体学报,2024,53(7):1127-1135,9.基金项目
国家自然科学基金(61935010,51972149,51872307,51702124,62175091,51702124) （61935010,51972149,51872307,51702124,62175091,51702124）
广东省重点领域研究发展计划(2020B0090922006) （2020B0090922006）
广州市科技计划(2024A03J0240) （2024A03J0240）
