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Crystal growth,structure and laser performance of a new Yb^(3+):KBaY(MoO_(4))_(3) crystal

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Journal of Rare Earths 2021年第10期39卷 1246-1255,I0003页

作者： Yi Yu Shimin Wu Xiurong Zhu Xianke Zhang Huajun Yu Jujun Yuan Na Xu Yu Dong Yeqing Wang School of Physics and Electronics Information Cannan Normal UniversityGanzhou 341000China Department of Applied Physics East China Jiaotong UniversityNanchang 330013China

A Yb^(3+):KBaY(MoO_(4))_(3)(Yb^(3+):KBYM)crystal with dimensions of 51 mm×27 mm × 10 mm was successfully grown by the TSSG *** characteristics of the crystal structure and probability of good optical properties were *** absorption and emission spectra of Yb^(3+):KBYM crystal exhibit broadened bands,with the maximum absorption cross-sections of 1.17 × 10^(-20),1.44×10^(-20) and 1.37 × 10^(-20) cm^(2) at976 nm for X-,Y-and Z-polarizations,*** corresponding absorption FWHMs are as wide as 77,46 and 55 *** well-known re-absorption effect of Yb^(3+) in the crystal is *** methods,the Fiichtbauer-Ladenburg method(FL)and reciprocity method(RM)were adopted to compute the emission cross-sections and results show a certain discrepancy but the errors are *** laser potentiality of the Yb^(3+):KBYM crystal was also evaluated by calculations of minimum inversion fractionβmin,saturation pump intensity Isat,the minimum pump intensity Imin and gain cross-sections *** experiment was carried out and Watt-level continuous wave laser has been *** indicate that the Yb^(3+):KBYM crystal with a disordered structure may be a potential laser media that can be used to generate tunable and ultrashort pulse laser emissions with high quality beam.

关键词： Molybdate crystal Disordered structure TSSG method Spectroscopic properties laser performance Rare earths

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Passive Q-Switching laser performance of Yb：YVO4 Crystal

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Chinese Physics Letters 2014年第12期31卷 52-55页

作者：李晓红陈晓雯韩文娟孔伟金刘均海 College of Physics Oingdao University. Oingdao 266071 Key Laboratory of Photonics Materials and Technology in Universities of Shandong Qingdao University Qingdao 266071

The tetragonal crystal of yttrium orthovanadate, YV04, has become the most important host material for the neodymium （Nd） ion, and Nd：YV04 has found wide applications in compact diode pumped solid- state lasers generating low-to-mediate powers. Due to their similarity in chemical properties as well as in electronic configurations, other trivalent lanthanide rare-earth ions can also be incorporated into the crys- tal of YV04, occupying the lattice sites for the Y ions. As a result, VV04 crystal can also serve as the host medium for other rare-earth laser ions including Yb, Er, Tm, and Ho.

关键词： Passive Q-Switching laser performance Crystal

Nd-doped structurally disordered YSr_(3)(PO_(4))_(3) single crystal:Growth and laser performances

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Journal of Rare Earths 2021年第12期39卷 1540-1546,I0004页

作者： Guangda Wu Xiaoqin Yin Mengdi Fan Fapeng Yu Shuzhen Fan Zhengping Wang Xian Zhao State Key Laboratory of Crystal Materials Institute of Crystal MaterialsShandong UniversityJinan 250100China Center for Optics Research and Engineering Key Laboratory of Laser&Infrared System(Shandong University)Ministry of EducationQingdao 266200China

Disordered-structure crystals have drawn increasing attention as promising ultrashort laser material hosts owing to their broad ***,a novel disordered Nd:YSr_(3)(PO_(4))_(3)(Nd:YSP)crystal with good quality was successfully grown via the Czochralski pulling *** absorption and fluorescence spectra of the Nd:YSP single crystal were recorded at ambient *** maximum absorption cross section for Nd:YSP single crystal is found to be approximately 3.89×10^(-20) cm^(2).The stimulated emission cross section for Nd:YSP crystal at~1060 nm was determined to be 7.64×10^(20) cm^(2) with the full width half maximum value of 22 *** fluorescence lifetime of the Nd3+ions in the Nd:YSP crystal is fitted to be 288μ***-pumped continuous-wave laser operation is firstly realized at approximately 1060 *** maximum output power value from the Nd:YSP crystal is 714 mW,corresponding to a slope efficiency of-12.8%.The results indicate that the Nd:YSP crystal with a disordered structure may be a promising disordered laser host.

关键词： Crystal growth Thermal behavior Spectral property laser performance Rare earths

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Fabrication,microstructures,and optical properties of Yb:Lu_(2)O_(3) laser ceramics from co-precipitated nano-powders

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Journal of Advanced Ceramics 2020年第6期9卷 674-682页

作者： Ziyu LIU Guido TOCI Angela PIRRI Barbara PATRIZI Yagang FENG Jiabei WEI Feng WU Zhaoxiang YANG Matteo VANNINI Jiang LI Key Laboratory of Transparent Opto-functional Inorganic Materials Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201899China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Istituto Nazionale di Ottica Consiglio Nazionale delle RicercheCNR-INOSesto Fiorentino(Fi)50019Italy Istituto di Fisica Applicata“N.Carrara” Consiglio Nazionale delle RicercheCNR-IFACSesto Fiorentino(Fi)50019Italy School of Material Science and Engineering Jiangsu UniversityZhenjiang 212013China

The Yb:Lu_(2)O_(3)precursor made up of spherical particles was synthesized through the co-precipitation method in the water/ethanol *** 5 at% Yb:Lu_(2)O_(3)powder is in the cubic phase after calcination at 1100℃ for 4 *** powder also consists of spherical nanoparticles with the average particle and grain sizes of 96 and 49 nm,*** average grain size of the pre-sintered ceramic sample is 526 nm and that of the sample by hot isostatic pressing grows to 612 *** 1.0 mm-thick sample has an in-line transmittance of 81.6%(theoretical value of 82.2%)at 1100 *** largest absorption cross-section at 976 nm is 0.96×1^(0-20)cm^(2) with the emission cross-section at 1033 nm of 0.92×10^(-20)cm^(2) and the gain cross sections are calculated with the smallest population inversion parameter β of *** highest slope efficiency of 68.7% with the optical efficiency of 65.1% is obtained at 1033.3 nm in quasi-continuous wave(QCW)*** the case of continuous wave(CW)pumping,the highest slope efficiency is 61.0% with the optical efficiency of 54.1%.The obtained laser performance indicates that Yb:Lu_(2)O_(3)ceramics have excellent resistance to thermal load stresses,which shows great potential in high-power solid-state laser applications.

关键词： Yb:Lu_(2)O_(3)transparent ceramics co-precipitated nano-powder spectroscopic properties laser performance hot isostatic pressing

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