RTP电光晶体的生长及其器件性能研究  

Growth and Device Performance of RTP Electro-Optical Crystal

作　　者：石爽爽 师瑞泽 王国影 肖亚波 王海丽[1,2] 陈建荣 SHI Shuangshuang;SHI Ruize;WANG Guoying;XIAO Yabo;WANG Haili;CHEN Jianrong(Beijing Sinoma Synthetic Crystal Co.,Ltd.,Beijing 100018,China;Sinoma Synthetic Crystal Co.,Ltd.,Beijing 100018,China)

机构地区：[1]北京中材人工晶体研究院有限公司,北京100018 [2]中材人工晶体研究院有限公司,北京100018

出　　处：《人工晶体学报》2023年第12期2151-2155,共5页Journal of Synthetic Crystals

基　　金：国家重点研发计划(SQ2021YFB3600023);北京市科协青年人才托举工程;中国建材集团攻关专项(2021HX2122)。

摘　　要：磷酸氧钛铷(RbTiOPO4,简称RTP)是综合性能优异的电光晶体,具有电光系数高、半波电压低、激光损伤阈值高、器件小巧、环境适应性强等优点,已成为新一代电光器件应用材料,非常适合用作电光开关、电光调制器等。激光系统的发展迫切需求更高功率、更高重复频率和更窄脉宽激光用高性能电光晶体,基于此,本文选用富Rb的高[Rb]/[P]摩尔比值生长体系,通过顶部籽晶熔盐法生长出高质量RTP晶体,测试了晶体或器件的光学均匀性、重复频率、插入损耗、消光比和抗激光损伤阈值,结果表明,该晶体的光学均匀性为7.3×10^(-6)cm^(-1),重复频率为501 kHz,插入损耗为0.49%,消光比为31.57 dB,激光损伤阈值为856 MW/cm^(2)。Rubidium titanyl phosphate(RTP)is an electro-optical(EO)crystal with excellent comprehensive performance,which has the advantages of high electro-optic coefficient,low half-wave voltage,high laser damage threshold as well as compact device,strong environmental adaptability,etc.These characters make it become a new generation of EO materials,suitable for use as EO switches,modulators,and other EO devices.The development of laser systems urgently requires highperformance EO crystals for higher power,higher repetition rate,and narrower pulse width lasers.In this paper,the growth system with high[Rb]/[P]molar ratio was chosen,and high-quality RTP crystal was successfully synthesized by the top seeded solution growth method.Relevant properties of crystal or device were tested,containing the optical uniformity,repetition rate,insertion loss,extinction ratio and laser damage threshold.The results show that,the optical homogeneity of sample is 7.3×10^(-6) cm^(-1),repetition frequency of 501 kHz,insertion loss of 0.49%,extinction ratio of 31.57 dB,and laser damage threshold of 856 MW/cm^(2).

关 键 词：RTP 电光晶体 顶部籽晶熔盐法 光学均匀性 激光损伤阈值 

分 类 号：O78[理学—晶体学] O734