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Electro-optically Q-switching performance of diode-pumped HoGdVO4 laser

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We proposed a Ho:GdVO4 laser operating at 2.05 µm which was directly in-band dual-end-pumped by a pair of 1.94 μm fiber-coupled laser diodes (LD). A Ho:GdVO4 crystal with doping of 1.0 at.% was used as the gain medium. In continuous-wave (CW) mode, we obtained the maximum output power of 6.5 W at 2047.9 nm with the absorbed pump power of 28 W, corresponding to a slope efficiency of 37.6 %. By using an LGS crystal as the electro-optical Q-switch, the highest peak power of 773.8 kW was obtained at a pulse repetition frequency (PRF) of 1 kHz, corresponding to a maximum pulse energy of 3.25 mJ and a pulse width of 4.2ns.

Original languageEnglish
Title of host publicationConference on Infrared, Millimeter, Terahertz Waves and Applications, IMT 2022
EditorsSonglin Zhuang, Junhao Chu
PublisherSPIE
ISBN (Electronic)9781510662476
DOIs
StatePublished - 2023
Event2022 Conference on Infrared, Millimeter, Terahertz Waves and Applications, IMT 2022 - Xi'an, China
Duration: 20 Sep 202222 Sep 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12565
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2022 Conference on Infrared, Millimeter, Terahertz Waves and Applications, IMT 2022
Country/TerritoryChina
CityXi'an
Period20/09/2222/09/22

Keywords

  • Electro-optically Q-switched
  • Ho:GdVO4 laser
  • LD pumped

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