皮秒脉冲泵浦的高功率超连续谱光源  

Picosecond laser pumped high power supercontinuum source

作　　者：陈胜平[1] 谌鸿伟[1] 王建华[1] 陈子伦[1] 侯静[1] 许晓军[1] 陈金宝[1] 刘泽金[1] 

机构地区：[1]国防科技大学光电科学与工程学院,湖南长沙410073

出　　处：《国防科技大学学报》2012年第1期1-3,23,共4页Journal of National University of Defense Technology

基　　金：中国博士后科学基金资助项目;教育部新世纪优秀人才计划资助项目(NCET-08-0142);国家自然科学基金资助项目(10904173;61077076;61007037);国防科技大学研究生创新基金资助项目(B110704);湖南省研究生创新基金资助项目(CX2011B034)

摘　　要：实验研究利用皮秒脉冲泵浦光子晶体光纤产生高功率超连续谱输出,探讨制作高功率全光纤超连续谱光源的关键技术,分析不同结构皮秒脉冲光纤激光器泵浦光子晶体光纤产生超连续谱的优缺点。应用重复频率倍增技术降低激光器自身的非线性效应,得到性能参数合适的高功率皮秒脉冲光纤激光器;采用后处理技术将光子晶体光纤输入端扩芯后与双包层光纤进行低损耗熔接,以增加皮秒激光的耦合效率;得到35.6W高功率全光纤超连续谱输出,光谱覆盖650nm～1700nm。A picosecond fiber laser was applied for high power supercontinuum generation （SCG） in photonic crystal fiber （PCF） , the key technical issues of fabricating high power all fiber supercontinuum sources were considered and the advantages and disadvantages of picosecond fiber lasers in several configurations for SCG in PCF were analyzed. By using a repetition rate increasing system, a high power picosecond fiber laser suitable for SCG was constructed. By enlarging the core of the PCF at the input end through post-processing method, low splicing loss was realized between the double cladding fiber and the PCF. 35.6 W supercontinuum output is realized with spectrum covering the wavelength range from 650 nm to 1700 nm.

关 键 词：超连续谱 超短脉冲 光子晶体光纤 高功率 全光纤 

分 类 号：TN248[电子电信—物理电子学]