基于光纤可饱和吸收体的1993 nm纳秒脉冲掺铥全光纤双腔激光器

发布时间：2018-06-16 03:48

  本文选题：激光器 + 光纤激光器　； 参考：《中国激光》2017年08期

【摘要】：报道了一种基于光纤可饱和吸收体的纳秒脉冲掺铥全光纤双腔激光器。该激光器采用线型双腔结构,采用1550nm连续光纤激光器作为抽运源,以光纤布拉格光栅作为波长选择器件,利用掺铥光纤的可饱和吸收特性,同时结合双谐振腔间的相互作用,获得稳定的纳秒脉冲输出。分别采用单包层铥钬共掺光纤和双包层掺铥光纤作为增益介质,研究二者对激光输出性能的影响,并进行优化对比,最终实现平均功率为256.3mW,最窄脉宽为87ns的1993nm激光输出,脉冲重复频率在20.0~33.3kHz范围内可调。
[Abstract]:A nanosecond pulse thulium doped all-fiber dual-cavity laser based on fiber saturable absorber is reported. The laser adopts linear double cavity structure, 1550nm CW fiber laser as pump source, fiber Bragg grating as wavelength selective device, and the saturable absorption characteristics of thulium doped fiber as well as the interaction between double resonators. Stable nanosecond pulse output is obtained. Single cladding thulium holmium doped fiber and double cladding thulium doped fiber were used as gain media respectively. The effects of the two on the laser output performance were studied and optimized. The 1993nm laser output with an average power of 256.3 MW and the narrowest pulse width of 87ns was achieved. The pulse repetition rate is adjustable in the range of 20.0 ~ 33.3kHz.
【作者单位】： 北京工业大学激光工程研究院北京市激光应用技术工程技术研究中心;
【基金】：国家自然科学基金(61235010,61307054);国家自然科学基金重大仪器项目(61527822)
【分类号】：TN248
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本文编号：2025159