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Vector soliton and noise-like pulse generation using a Ti3C2 MXene material in a fiber laser

Frontiers of Information Technology & Electronic Engineering 2021年第3期22卷 318-324页

作者： Shuai WANG Lei LI Yu-feng SONG Ding-yuan TANG De-yuan SHEN Lu-ming ZHAO Jiangsu Key Laboratory of Advanced laser Materials and Devices Jiangsu Collaborative Innovation Center of Advanced Laser Technology and Emerging IndustrySchool of Physics and Electronic EngineeringJiangsu Normal UniversityXuzhou 221116China Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics International Institute of Microscale OptoelectronicsInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of EducationShenzhen UniversityShenzhen 518060China School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore Kunshan Shunke laser Technology Co. Ltd.Suzhou 215300China

We built a Tm:Ho co-doped fiber laser using a Ti3C2 MXene material as a saturable absorber(SA).The formation of vector solitons(VSs)and noise-like pulses(NLPs)was observed.The SA was prepared by dripping a Ti3C2 solution on a side-polished D-shaped fiber and then naturally vaporized.The VS is characterized by two coexisting sets of Kelly sidebands.By modulating the polarization controller in the fiber laser,NLPs with about 3.3 nm bandwidth can be switched from the VS.To the best of our knowledge,this is the first time that VSs have been generated in a fiber laser using a Ti3C2 MXene material as the SA.

关键词： Vector soliton Noise-like pulse MXene laser fiber

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Separation and purification of Yb_(2)O_(3) by ion exchange chromatography and preparation of ultra-high purity Yb_(2)O_(3)

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稀有金属:英文版 2023年第8期42卷 2725-2735页

作者： Xi-Juan Pan Zhi-Qing Yang Yang Xu Meng Wang Xiao-Wei Huang Zong-Yu Feng Qiang Zhong Xin-Lin Peng National Engineering Research Center for Rare Earth China GRINM Group Co.Ltd.Beijing 100088China GRIREM HI-TECH Co. Ltd.Langfang 065201China GRIREM Advanced Materials Co. Ltd.Beijing 100088China General Research Institute for Nonferrous Metals Beijing 100088China

Ultra-high purity Yb_(2)O_(3) is the critical material of many high-tech materials such as laser glass and fiber,in which impurities seriously affect the laser color quality,intensity and power.In order to reduce the influence of impurities on the properties of laser materials,the purification process of Yb_(2)O_(3) was studied by comparing two kinds of resins(RT-1 and RS-1)using improved ion-exchange chromatography(IEC)method.In this study,through the synergistic improvement of resin structure and eluting system,the environmental pollution caused by ammonia water in the traditional IEC method was reduced,and the requirements of high temperature and pressure were cut.The ion exchange behavior and impurity removal mechanism in the resin column during the loading and eluting process were compared and analyzed.The experimental results show that RS-1 resin is all superior to RT-1resin in elements selectivity,ion exchange capacity and impurities removal rate.After separation and purification by IEC with RS-1 resin,the total removal rate of rare earth impurities was 77.59%and that of non-rare earth impurities was 95.86%when Yb recovery was more than 70%,both higher than that of RT-1 resin(73.26%and 83.18%).This indicates that the improved IEC method is very effective in separating and removing different metal impurities from Yb_(2)O_(3).The pilot test results of IEC method separating and purifying Yb_(2)O_(3) with RS-1 resin show that the purity of Yb_(2)O_(3) can be increased from 99.9929%to 99.9997%by IEC method.It has exhibited huge potential of preparing ultra-high purity Yb_(2)O_(3),especially the deep removal of non-rare earth impurities.

关键词： Ultra-high purity Yb_(2)O_(3) Ion exchange chromatography(IEC) laser fiber Separation mechanism Impurities

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Functional fibers and Functional fiber‑Based Components for High‑Power lasers

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Advanced fiber Materials 2023年第1期5卷 59-106页

作者： Xiao Chen Tianfu Yao Liangjin Huang Yi An Hanshuo Wu Zhiyong Pan Pu Zhou College of Advanced Interdisciplinary Studies National University of Defense TechnologyChangsha 410073China

The success of high-power fiber lasers is fueled by maturation of active and passive fibers,combined with the availability of high-power fiber-based components.In this contribution,we first overview the enormous potential of rare-earth doped fibers in spectral coverage and recent developments of key fiber-based components employed in high-power laser systems.Subsequently,the emerging functional active and passive fibers in recent years,which exhibit tremendous advantages in balancing or mitigating parasitic nonlinearities hindering high-power transmission,are outlined from the perspectives of geo-metric and material engineering.Finally,novel functional applications of conventional fiber-based components for nonlinear suppression or spatial mode selection,and correspondingly,the high-power progress of function fiber-based components in power handling are introduced,which suggest more flexible controllability on high-power laser operations.

关键词： High-power laser laser fiber Passive fiber-based component Functional fiber Functional fiber-based component

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