基于半导体可饱和吸收镜的全光纤掺镱锁模皮秒激光器  

All-fiber ytterbium-doped mode-locked picosecond laser based on semiconductor saturable absorber mirror

作　　者：迟凯丽 孔梅[1] 杨翘楚 刘显著[2,3] 王天枢[2,3] CHI Kaili;KONG Mei;YANG Qiaochu;LIU Xianzhu;WANG Tianshu(School of Physics,Changchun University of Science and Technology,Changchun 130022,China;National and Local Joint Engineering Research Center of Space Optoelectronics Technology,Changchun University of Science and Technology,Changchun 130022,China;School of Opto-Electronic Engineering,Changchun University of Science and Technology,Changchun 130022,China)

机构地区：[1]长春理工大学物理学院,吉林长春130022 [2]长春理工大学空间光电技术国家与地方联合工程研究中心,吉林长春130022 [3]长春理工大学光电工程学院,吉林长春130022

出　　处：《应用光学》2025年第1期217-223,共7页Journal of Applied Optics

基　　金：吉林省自然科学基金(YDZJ202101ZYTS139,YDZJ202201ZYTS418,20220508134RC);国家自然科学基金青年基金(62105042)。

摘　　要：设计一种基于半导体可饱和吸收镜的掺镱(Yb)光纤激光器。通过啁啾光纤布拉格光栅调节腔内净色散,研究谐振腔内净色散处于负色散区域时,激光器输出脉冲的特性。实验采用全保偏的线性腔结构,当泵浦功率为138 mW时,实现了稳定的自启动锁模。输出脉冲的最小脉冲宽度为4.5 ps,最高重复频率为46.5 MHz,中心波长为1063.7 nm,3 dB光谱宽度为1.44 nm。当泵浦功率为220 mW、腔内滤波带宽为4 nm时,可以观察到束缚态孤子,其脉宽为6.24 ps,脉冲间隔为46.58 ps。最后通过12 h的稳定测试,证明该激光器具有良好的功率稳定性,可以作为稳定的种子源应用。A ytterbium(Yb)-doped fiber laser based on semiconductor saturable absorber mirror was designed.By adjusting the net dispersion in the cavity with chirped fiber Bragg grating,the output pulse characteristics of the laser were studied when the net dispersion in the cavity was in the negative dispersion region.In the experiment,the linear cavity structure with all-polarization maintaining was adopted.When the pump power was 138 mW,the stable self-starting mode-locking was realized.The minimum pulse width of the output pulse is 4.5 ps,the maximum repetition frequency is 46.5 MHz,the central wavelength is 1063.7 nm,and the spectral width of 3 dB is 1.44 nm.When the pump power is 220 mW and the intracavity filtering bandwidth is 4 nm,the bound solitons with pulse width of 6.24 ps and pulse interval of 46.58 ps can be observed.Finally,the 12-h stability test proves that the laser has good power stability,and can be used as a stable seed source for subsequent applications.

关 键 词：激光器 被动锁模 半导体可饱和吸收镜 束缚态孤子 啁啾光纤布拉格光栅 

分 类 号：TN248[电子电信—物理电子学]