IEEE Photonics Journal (Jan 2018)

High-Power Ho-Doped Sesquioxide Ceramic Laser In-Band Pumped by a Tm-Doped All-Fiber MOPA

  • Yongguang Zhao,
  • Jun Wang,
  • Weichao Yao,
  • Zhenhua Shao,
  • Chongfeng Shen,
  • Danlei Yin,
  • Ying Wang,
  • Peng Liu,
  • Wei Zhou,
  • Dingyuan Tang,
  • Deyuan Shen

DOI
https://doi.org/10.1109/JPHOT.2018.2820328
Journal volume & issue
Vol. 10, no. 2
pp. 1 – 7

Abstract

Read online

We report on a high-power Ho:Y2O3 ceramic laser in-band pumped by a homemade Tm-doped all-fiber MOPA at 1941 nm. The Ho:Y2O3 ceramics fabricated by vacuum sintering and hot isostatic pressing present uniform ceramic grain and high optical homogeneity. The 24.6 W output power at ~2117 nm is successfully achieved by exploiting the advantages of in-band pumping technique, which to our knowledge is one order of magnitude higher than the previous results obtained from the Ho-doped sesquioxides ceramic lasers, indicating the power scalability of sesquioxides ceramic compared to other bulk materials in high-power laser.

Keywords