一种测量二极管侧面抽运固体激光器热焦距的方法  

A method for measuring thermal focal length of LD-side-pumped laser crystal

作　　者：耿爱丛[1] 赵慈[1] 薄勇[2] 鲁远甫[2] 许祖彦[2] 

机构地区：[1]北京工商大学数理系,北京100037 [2]中国科学院物理研究所,北京凝聚态物理国家实验室,北京100190

出　　处：《物理学报》2008年第11期6987-6991,共5页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:60508013);北京市教育委员会科技计划项目;北京工商大学教改项目(批准号:JG075219)资助的课题~~

摘　　要：提出了一种能够简单、准确测量二极管侧面抽运固体激光器热透镜焦距的方法,明确提出采用非对称平平腔测量时,激光晶体端面与腔镜的间距不需要为零,并从实验上证明了方法的可靠性.应用该方法的测量结果可以优化复合折叠和频黄光激光器的结构,保证两束基频在腔内达到最佳的空间重合,提高腔内和频效率.This paper reports a simple and accurate method for measuring thermal focal length of LD-side-pumped laser crystal.While applying the nonsymmetrical plane-plane-cavity to measure the thermal focal length,the distance from the end of the laser crystal to the end mirror need not be zero,and the reliability of this method is proved by experiments.Based on the obtained measurement results,folding configuration oscillators of yellow laser for intracavity sum frequency can be optimized,which ensures high space overlapping of two fundamental beams and high sum frequency efficiency.

关 键 词：全固态激光器 Nd∶YAG激光器 热焦距 腔内和频 

分 类 号：TN248[电子电信—物理电子学]