基于皮秒脉冲泵浦的5W全光纤超连续谱光源  

5 W all-fiber supercontinuum source pumped by picosecond pulse fiber laser

作　　者：闫培光[1] 赵健[1] 阮双琛[1] 舒杰[1] 赵俊清[1] 李相[2] 陈胜平[2] 韦会峰[3] 

机构地区：[1]深圳大学电子科学与技术学院,广东深圳518060 [2]国防科技大学光电科学与技术学院,湖南长沙410073 [3]长飞光纤光缆有限公司光纤研发中心,湖北武汉430073

出　　处：《光电子．激光》2011年第6期820-822,826,共4页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目(61007054;10904173);广东省自然科学基金资助项目(9451806001002428);深圳市科技计划资助项目(200718)

摘　　要：基于三级MOPA结构皮秒光纤激光器泵浦一段30 m长的国产光子晶体光纤(PCF),实现了全光纤化结构的超连续谱(SC)光源。在PCF与单模光纤(SMF)模场不匹配条件下,通过仔细调节熔接参数,在19 W入射功率条件下实现了最大功率为5 W的稳定超连续输出,系统光-光转换效率为24%。输出能量被很好地限制在纤芯,纤芯光斑为六边形的基模光斑。研究了光谱的演变过程,在最高功率时,对应的光谱短波展宽至600 nm,长波超过1 700 nm。A supercontinuum（SC） source based on tri-stage MOPA configuration picosecond fiber laser pumping a 30 m-long home-made photonic crystal is reported.The system is all fiber,and a stable supercontinuum source with maximum power of 5 W at input power of 19 W is demonstrated by carefully adjusting the splicing parameter although the mode fields of the photonic crystal fiber and single mode fiber mismatch.The optical-optical conversion efficiency is 24%.The output energy is well confined in the fiber core,and the light spot of the core is in hexagon single mode style.The convolution of the spectrum with pump is also studied.The short wavelength is extended to 600 nm and the long wavelength is beyond 1 700 nm at the maximum output power.

关 键 词：光子晶体光纤(PCF) 全光纤超连续谱(SC)光源 皮秒脉冲光纤激光器 

分 类 号：TN253[电子电信—物理电子学]