激光技术2025，Vol.49Issue(2)：223-226,4.DOI:10.7510/jgjs.issn.1001-3806.2025.02.010
铒镱共掺三硼酸铝钇晶体维尔德常数的测量
Measurement of Verdet constant of Er,Yb∶YAl3(BO3)4 crystal
摘要
Abstract
In order to construct a unidirectional traveling-wave ring resonator or non-planar ring resonator that utilizes the magneto-optical effect of the laser gain medium itself without additional magneto-optical crystals,so as to meet the application requirements of preparing continuous wave single-frequency 1.5 μm solid-state lasers with power greater than watts,the Verdet constants of Er,Yb∶YAl3(BO3)4 crystals were experimentally investigated by means of magneto-optical modulation technique combined with balanced detection.The Verdet constants of Er,Yb∶YAl3(BO3)4 crystals at different doped atomic fractions and temperatures were obtained.The results show that the measured Verdet constants of Er,Yb∶YAl3(BO3)4 crystals with different doped atomic fractions of Yb ions,namely 10%,15%and 25%,are 48.11°/(T·m),33.05°/(T·m)and 10.88°/(T·m),respectively.When the temperature of Er,Yb∶YAl3(BO3)4 crystal with a Yb3+doped atomic fractions of 25%is increased from 13℃to 38℃,the Verdet constant showes a nonlinear decrease from 11.40°/(T·m)to 10.15°/(T·m).The Verdet constant of the Er,Yb∶YAl3(BO3)4 crystal is comparable with that of the yttrium aluminum garnet crystal.Moreover,the crystal exhibits paramagnetism.The magneto-optic rotation performance of the gain medium can be improved by either employing the low doped crystal or lowering the crystal temperature.This study provides a reference for the construction of continuous wave single frequency solid-state lasers without additional magneto-optical crystals.关键词
激光光学/维尔德常数/磁光调制/铒镱共掺三硼酸铝钇晶体/平衡探测Key words
laser optics/Verdet constant/magneto-optical modulation/Er,Yb∶YAl3(BO3)4 crystals/balanced detection分类
电子信息工程引用本文复制引用
王文荣,戚蒙,李渊骥,冯晋霞,张宽收..铒镱共掺三硼酸铝钇晶体维尔德常数的测量[J].激光技术,2025,49(2):223-226,4.基金项目
国家自然科学基金资助项目(62175135) （62175135）
中央引导地方科技发展资金资助项目(YDZJSX20231A006) （YDZJSX20231A006）
山西省基础研究计划资助项目(202103021224025) （202103021224025）
