16 W single-frequency laser output from an Er:YAG ceramic nonplanar ring oscillator

M. Zhang, C. Q. Gao, M. W. Gao, Y. X. Zhang, S. Huang

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

A high-power 1645 nm monolithic Er:YAG ceramic nonplanar ring oscillator (NPRO) is demonstrated. The maximum 1645 nm single-frequency power is 16.10 W, with a slope efficiency of 56.24% and an optical efficiency of 50.15%. The relative power stability of the Er:YAG ceramic NPRO laser is measured to be 0.33% in 30 min. When the temperature of the Er:YAG ceramic changed, the widest continuous tuning range without mode-hoping is 4.21 GHz. The line width of the Er:YAG ceramic NPRO laser is 4.4 kHz. The M 2 factors are 1.20 and 1.27 in x and y directions, respectively.

Original languageEnglish
Article number125803
JournalLaser Physics Letters
Volume15
Issue number12
DOIs
Publication statusPublished - Dec 2018

Keywords

  • ceramic
  • nonplanar ring oscillator
  • single-frequency

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