28W高功率超连续谱光纤激光光源  

High power 28 W supercontinuum fiber laser source

作　　者：高静[1] 于峰[1] 匡鸿深 葛廷武[1] 王智勇[1] 

机构地区：[1]北京工业大学激光工程研究院国家产学研激光技术中心,北京100124

出　　处：《红外与激光工程》2014年第9期2840-2843,共4页Infrared and Laser Engineering

基　　金：科研基地-科技创新平台-光纤激光器研究平台-高功率全光纤激光器的开发(PXM2011_014204_09_000060)

摘　　要：报道了一个全光纤结构的高功率超连续谱激光光源。利用自行搭建的环形腔掺镱脉冲光纤激光器作为种子源，采用三级MOPA功率放大，得到了平均功率为62 W，中心波长为1065 nm，3 dB谱宽15 nm，重复频率为118 MHz的皮秒锁模脉冲输出，将其耦合进零色散波长为1040 nm的光子晶体（PCF），最终得到平均功率为28 W，谱宽覆盖范围为600~1700 nm的超连续谱激光输出，超连续谱的光-光转换效率为45%。实验解决了高功率下大芯径掺杂光纤与PCF的耦合效率低的问题。An all -fiber high power supercontinuum laser source was experimentally reported. An ytterbium-doped ring fiber oscillator was established as the seed source. By utilizing a three-stage master oscillator power amplifier （MOPA）, the signal light average power was amplified to 62 W with a central wavelength of 1 065 nm, the 3 dB spectral bandwidth was 15 nm, and the repetition rate was 118 MHz. By coupling the amplified pulsed laser into a piece of photonic crystal fiber（PCF） with a 1 040 nm zero-dispersion wavelength, supercontinuum with 28 W output average power was obtained, the spectrum range was covering from 600 nm to 1 700 nm, and the optical conversion efficiency is 45%. In this experiment, the coupling problem between large core doped fiber and photonic crystal fiber at high output power was also solved.

关 键 词：PCF 超连续谱 脉冲光纤激光器 

分 类 号：TN248[电子电信—物理电子学]