高功率光纤激光器端面反射系数快速优化算法  

A Rapid Optimization Algorithm of Mirror Reflectivity in High Power Fiber Lasers

作　　者：胡旭东[1] 宁提纲[1] 陈青艳[1] 

机构地区：[1]北京交通大学光波技术研究所,北京100044

出　　处：《中国激光》2009年第11期2827-2831,共5页Chinese Journal of Lasers

基　　金：国家自然科学基金(60771008);北京市自然科学基金(4082024);新世纪优秀人才支持计划(NCET-06-0076);留学回国人员基金(教外2008890);教育部博士点基金(200800040002);北京交通大学校科技基金(2006XM003)资助课题

摘　　要：在高功率光纤激光器优化中提出了一种输入端反射系数与输出端反射系数快速优化算法。基于斜率效率优化准则,通过掺镱光纤激光器实例分析,数值计算结果表明,采用端面反射系数快速优化选择算法,将计算时间至少缩短为传统算法的8%,较好地避免了阶梯误差的产生,提高了计算精度;在相同的参数条件下,正向抽运时,光纤激光器的端面反射系数优化选择取值区域最大,双向抽运时,光纤激光器的端面反射系数优化选择取值区域次之,而反向抽运时,光纤激光器的端面反射系数优化选择取值区域最小。A rapid optimization algorithm to determine the selective value area of input mirror reflectivity and output mirror reflectivity for the optimum of high power fiber lasers is proposed. Under slope efficiency optimization selection criterion,taking Yb3＋-doped fiber lasers as examples,the numerical simulation results indicate that computing time using the rapid optimization algorithm of reflectivity in high power fiber lasers is less than 8% of time using traditional algorithm,ladder errors are well avoided and improvement of precision is obtained. The numerical simulation results also indicate that under the conditions,the selective area of mirror reflectivity of fiber lasers with forward pumping is largest,the selective area of mirror reflectivity of fiber lasers with bidirectional pumping takes second place and the selective area of mirror reflectivity of fiber lasers with backward pumping is smallest.

关 键 词：通信技术 光纤激光器 端面反射系数 最佳光纤长度 优化算法 

分 类 号：TN248.1[电子电信—物理电子学]