新型高掺铥硅酸盐玻璃光纤及其光纤激光的研究

Translated title of the contribution: Research of novel highly thulium-doped silicate glass fiber and related fiber lasers

Junxiang Zhang, Wei Shi, Chaodu Shi, Qiang Fang, Shijie Fu, Quan Sheng, Xiushan Zhu, Nasser Peyghambarian, Jianquan Yao

Research output: Contribution to journalArticlepeer-review

Abstract

Active fiber with high rare earth ion doping concentration has always been the key component of high-performance single-frequency fiber lasers, and silicate glass can be used to fabricate highly doped active fibers with excellent unit gains. Here, highly doped silicate glass with the thulium ion doping concentration of 8 wt.% was prepared by a high-temperature melting process, and its spectral characteristics and fluorescence lifetime were measured. Based on McCumber theory, the emission cross section of the glass was calculated. By the method of rod-in-tube, fiber preforms were prepared, and then the highly thulium-doped silicate glass fiber of 7/125 μm was drawn. Based on low-loss specialty fiber fusion splicing, the fiber unit gain was measured, and linear-cavity fiber lasers based on 2 cm and 8 cm novel thulium-doped fibers were investigated, where 1950 nm laser output of hundred-milliwatt-level power was obtained. This work has shown that under such a high doping concentration of 8 wt.%, which is the highest thulium doping concentration to date, thulium ions still have good luminescence properties in this novel glass host. The homemade highly thulium-doped glass fiber in this paper can be used to fabricate high performance single-frequency fiber lasers.

Translated title of the contributionResearch of novel highly thulium-doped silicate glass fiber and related fiber lasers
Original languageChinese (Traditional)
Article number20200424
JournalHongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Volume50
Issue number9
DOIs
StatePublished - Sep 25 2021

Keywords

  • Emission cross section
  • Fluorescence lifetime
  • Highly thulium-doped silicate glass fiber
  • Linear-cavity fiber laser

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Aerospace Engineering
  • Space and Planetary Science
  • Electrical and Electronic Engineering

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