被动调QDPL激光器预抽运技术的参数研究  

Study on parameter of pre-pumping technology of DPL passively Q-switched

作　　者：杨昱冰[1] 文建国[1] 王石语[1] 蔡德芳[1] 过振[1] 李北岳[1] 

机构地区：[1]西安电子科技大学技术物理学院,陕西西安710071

出　　处：《激光杂志》2005年第5期15-17,共3页Laser Journal

基　　金：国防重点实验室基金资助课题(51456050104DZ0101)

摘　　要：如何改善被动调QDPL激光器的输出不稳定性一直是研究的重点。通过对预抽运技术的理论研究,对预抽运技术进行了数值分析,得出了相应的图表。研究表明,抽运光的脉冲部分及其占空比对于输出脉冲波动的影响存在最佳值;抽运光的直流部分和抽运频率对于输出效果影响较大。将预抽运和连续抽运加以比较,发现预抽运技术可用于在被动调Q中稳定输出脉冲。It is an important task to study how to improve the output instability of passively Q - switched DPL.The theory of Pre- pumping technology was discussed. The characteristics of output pulse series were evaluated as the function of the parameters of pre - pumping technology. The results were shown by the curves . It is shown that there are an optimum pulse part and duty ratio affecting the instability of pulse series , and DC part and the pumping rate affect the output characteristics visibly. The results of Pre - pumping and CW - pumping were compared. Analyses show that pre - pumping technology is applicable to stabilizing the output pulse series in passive Q- switching.

关 键 词：激光技术 预抽运技术 不稳定性 

分 类 号：TN248.1[电子电信—物理电子学]