超低重复频率全光纤被动锁模掺铒光纤激光器  

All-Fiber Passively Mode-Locked Erbium-Doped Fiber Laser with Ultra-Low Repetition Rate

作　　者：陈炯[1] 贾东方[1] 杨敬文[1] 刘彤辉[1] 王肇颖[1] 杨天新[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院,光电信息技术科学教育部重点实验室,天津300072

出　　处：《中国激光》2012年第6期22-24,共3页Chinese Journal of Lasers

基　　金：国家973计划(2010CB327806);天津市自然科学基金(11JCYBJC01300,12JCYBJC10800);天津大学自主创新基金资助课题

摘　　要：报道了一种新颖的全光纤超长环形腔掺铒光纤激光器。该激光器采用非线性偏振旋转(NPR)技术实现自启动锁模,除了NPR元件外,其余全部由单模光纤(SMF)元件组成。通过加入4km的SMF构成长达4.046km的环形腔,产生了重复频率为50.92kHz的稳定锁模脉冲,最大平均输出功率为2.73mW,对应的单脉冲能量为53.61nJ。A novel all-fiber ultra-long ring cavity erbium-doped fiber laser is reported.The laser consists of only single mode fiber（SMF） components except the nonlinear polarization rotation（NPR） parts which are utilized to achieve self-starting passively mode-locking.The total length of the ring cavity amounts to 4.046 km,which is achieved by incorporating a 4 km SMF.In experiment,the laser generates stable mode-locked pulses with a 50.92 kHz fundamental repetition rate.The maximum average power of output pulses is 2.73 mW,which corresponds to a single pulse energy of 53.61 nJ.

关 键 词：激光器 被动锁模 非线性偏振旋转 超低重复频率 

分 类 号：TN248.1[电子电信—物理电子学]