Stability of Q-switched 2 μm lasers

James Brooks, Gerald M. Bonner, Alan J. Kemp, David J. M. Stothard

Research output: Contribution to journalArticle


Q-switched lasers operating at wavelengths around 2 µm have many applications including materials processing and LIDAR. However, the low gain of the quasi-three-level gain media available at 2 µm can lead to problems with pulse-to-pulse fluctuations in their output, known as jitter. Here we present a methodology for characterising the level of jitter in a Q-switched laser and apply it to a Tm:YAP system. We also look at the causes of jitter and evaluate some methods of reducing it. The methodology developed here will aid in the development and characterisation of Q-switched lasers at any wavelength.
Original languageEnglish
Pages (from-to)568-579
Number of pages12
JournalOSA Continuum
Issue number3
Publication statusPublished - 5 Mar 2020


  • Q-switched lasers
  • jitter
  • pulse parameters

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  • Projects

    Student Theses

    Control of the stability of pulsed 2 μm lasers

    Author: Brooks, J., 12 Apr 2019

    Supervisor: Kemp, A. (Supervisor) & Hastie, J. (Supervisor)

    Student thesis: Doctoral Thesis

    Cite this

    Brooks, J., Bonner, G. M., Kemp, A. J., & Stothard, D. J. M. (2020). Stability of Q-switched 2 μm lasers. OSA Continuum, 3(3), 568-579.