激光加热基座法制备Er∶YAP单晶光纤及性能表征  

Laser-Heated Pedestal Growth Method and Characterization of Er∶YAP Single Crystal Fibers

作　　者：武旭 张振 张中晗 武安华[1,2] 苏良碧 WU Xu;ZHANG Zhen;ZHANG Zhonghan;WU Anhua;SU Liangbi(Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China;College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院上海硅酸盐研究所,上海201899 [2]中国科学院大学材料科学与光电技术学院,北京100049

出　　处：《人工晶体学报》2023年第7期1308-1316,共9页Journal of Synthetic Crystals

基　　金：国家重点研发计划(2021YFB3601504);国家自然科学基金(61925508,62005302);中科院稳定支持基础研究领域青年团队计划(YSBR-024);上海市科学技术委员会项目(21520711300);中国科学院“一带一路”国际合作项目(121631KYSB20200039)。

摘　　要：本文采用了激光加热基座(LHPG)法逆向生长技术,实现了多组分Er∶YAP晶体的快速制备。利用LHPG法开展了Er∶YAP单晶光纤的生长研究,通过解决单晶光纤生长过程中存在的色心、开裂、直径起伏等关键问题,制备出直径0.8 mm、长度65 mm的高品质Er∶YAP单晶光纤。对不同掺杂浓度Er∶YAP晶体的光谱性能进行表征分析,结果表明掺杂浓度5%(原子数分数)时,Er^(3+)间存在较强的能量传递过程,有利于实现高效率中红外激光输出。In this work,rapid sythesis strategy of Er∶YAP crystals with different doping concentrations were developed using a reverse laser-heated pedestal grwoth(LHPG)method.High quality Er∶YAP single crystal fibers of∅0.8 mm×65 mm were obtained using LHPG process by optimizing growth parameters to inhibit defects such as s color centers,cracking,and diameter fluctuations during the growth process.Spectroscopic characterization of Er∶YAP crystals indicates that there is a strong energy transfer process between Er^(3+)when the doping concentration reaches 5%(atomic fraction),which is favorable for generating high-efficient mid-infrared lasers.

关 键 词：中红外激光 Er∶YAP晶体 激光加热基座法 单晶光纤 能量传递 

分 类 号：O734[理学—晶体学]