基于氧化铜可饱和吸收体的掺铒光纤激光器  

Erbium-doped fiber laser based on copper oxide saturable absorber

作　　者：张亚妮 武柯欣 苗挺 薛佳 姚一鸣 ZHANG Ya'ni;WU Kexin;MIAO Ting;XUE Jia;YAO Yiming(School of Arts and Sciences,Shaanxi University of Science and Technology,Xi'an 710021,China)

机构地区：[1]陕西科技大学文理学院,陕西西安710021

出　　处：《应用光学》2023年第3期684-692,共9页Journal of Applied Optics

基　　金：陕西省科技厅重点研发计划-国际科技合作计划(2021KWZ-11);国家留学基金(202208615033);中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室(SKLST202223);陕西省技术创新引导专项基金(2021QFY03-02,2022QFY04-03);陕西省西安市科技计划(22GXFW0009)。

摘　　要：报道了一种基于氧化铜(copper oxide, CuO)材料可饱和吸收体(saturable absorber, SA)的孤子锁模掺铒光纤激光器(erbium-doped fiber laser, EDFL)。通过将液相沉淀法制备的氧化铜沉积在锥形光纤上作为SA被动锁模器件。当泵浦功率为233.6 mW时,在中心波长1 530.2 nm处获得了脉冲宽度为1.23 ps的传统孤子,其基本重复频率为5.34 MHz,脉冲能量和平均输出功率分别为1.37 nJ和2.2 mW。此外,当泵浦功率增加到329 mW时,首次在中心波长1 529.6 nm处观察到了束缚态孤子脉冲,其光谱调制周期为3 nm,脉冲分离度为2.6 ps。研究结果表明,CuO材料是超快光纤激光器的良好SA候选材料。A soliton mode-locked erbium-doped fiber laser(EDFL)was reported using copper oxide(CuO)material as a saturable absorber(SA).The CuO material was prepared by liquid phase precipitation method and deposited on the tapered fiber as a passive mode-locked device.When the pump power was 233.6 mW,the traditional soliton pulses with a pulse width of 1.23 ps were obtained at the central wavelength of 1530.2 nm,with a basic repetition frequency of 5.34 MHz and the pulse energy as well as average output power of 1.37 nJ and 2.2 mW,respectively.In addition,when the pump power was increased to 329 mW,the bound-state soliton pulses were first observed at the central wavelength of 1529.6 nm,with a spectral modulation period of 3 nm and a pulse separation of 2.6 ps.The results show that the CuO materials are good SA candidates for ultrafast fiber lasers.

关 键 词：光纤激光器 被动锁模 掺铒光纤 可饱和吸收体 

分 类 号：TN248[电子电信—物理电子学]