高能量全光纤结构被动锁模2.0μm掺铥超短脉冲光纤激光器  

High-Pulse-Energy Passively Mode-Locked 2.0μm Thulium-Doped Ultrafast All-Fiber Laser

作　　者：刘江[1] 徐佳[1] 王潜[1] 王璞[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：《中国激光》2012年第6期41-43,共3页Chinese Journal of Lasers

基　　金：国家自然科学基金(61177048);北京市自然科学基金重点项目(KZ2011100050011)资助课题

摘　　要：报道了高脉冲能量全光纤结构半导体可饱和吸收镜锁模的2.0μm波段掺铥超短脉冲光纤激光器。在抽运功率为1.8W时,开始得到稳定的重复频率为14.3MHz的锁模激光脉冲,平均输出功率为5mW;当抽运功率增加到3.8W时,最大平均输出功率达到59mW,相应的最高单脉冲能量为4.1nJ。此时测得锁模激光脉冲的脉宽为2.2ps,中心波长为2015nm,3dB光谱带宽为2.9nm。High-pulse-energy semiconductor saturable absorber mirror mode-locked 2.0 μm thulium-doped ultrafast all-fiber laser is reported.Stable mode-locked pulse train occurred at 1.8 W incident pump power and the pulse repetition rate is 14.3 MHz in a ring cavity configuration.Increasing the incident pump power to 3.8 W,the maximum output power is 59 mW,corresponding to the maximum single pulse energy of 4.1 nJ.The pulse width is measured to be 2.2 ps,the center wavelength and the spectral bandwidth are 2015 nm and 2.9 nm respectively.

关 键 词：激光器 光纤激光器 超快激光 掺铥光纤 被动锁模 

分 类 号：TN248[电子电信—物理电子学]