Passively Q-switched 1.6 μm Er:YAG laser with a γ-Ga2O3:Co-based glass-ceramics as a saturable absorber

Yang Shi, Chunqing Gao*, Qing Ye, Shuo Wang, Qing Wang, Mingwei Gao, Pavel Loiko, Nikolai Skoptsov, Olga Dymshits, Alexander Zhilin, Svetlana Zapalova, Marina Tsenter, Vladimir Vitkin, Xavier Mateos, Konstantin Yumashev

*Corresponding author for this work

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Abstract

A resonantly pumped passively Q-switched Er:YAG laser operating at 1.617 and 1.645 μm is reported with γ-Ga2O3:Co2+-based glass-ceramics (GCs) as a saturable absorber. The maximum average output power achieved from this laser was 273 mW; the highest pulse energy was 5.9 μJ, corresponding to a pulse duration of 3.0 μs at a repetition frequency of 31 kHz. To the best of our knowledge, this is the first time to use the γ-Ga2O3:Co2+-based GC as a passive Q-switcher for Er:YAG lasers and this is also the first time to obtain 1.617 μm and 1.645 μm pulses with a GC-based saturable absorber.

Original languageEnglish
Article number045004
JournalLaser Physics Letters
Volume15
Issue number4
DOIs
Publication statusPublished - Apr 2018

Keywords

  • Er:YAG laser
  • Q-switching
  • cobalt
  • glass-ceramics
  • solid-state lasers

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Shi, Y., Gao, C., Ye, Q., Wang, S., Wang, Q., Gao, M., Loiko, P., Skoptsov, N., Dymshits, O., Zhilin, A., Zapalova, S., Tsenter, M., Vitkin, V., Mateos, X., & Yumashev, K. (2018). Passively Q-switched 1.6 μm Er:YAG laser with a γ-Ga2O3:Co-based glass-ceramics as a saturable absorber. Laser Physics Letters, 15(4), Article 045004. https://doi.org/10.1088/1612-202X/aaa9a8