High energy (0.8 J) mechanically Q-switched 2.94 μm Er:YAG laser

Academic Article

Abstract

  • We report a flashlamp pumped mechanically Q-switched (MQS) 2.94 μm Er:YAG laser based on a spinning mirror with a highest output energy of 805 mJ at a pulse duration of 61 ns and 13 MW of peak power at 1 Hz repetition rate. This record output energy was achieved with the use of 300mm long MQS Er:YAG laser cavity consisting of a 70% output coupler, 7 × 120mm AR coated Er(50%):YAG crystal, and 4200 rad/s angular speed of the spinning mirror. The pulse jitter was also measured by using optical triggering and was smaller than 10 ns for 150 ns Q-switched pulses, which could be applicable to many laser applications where precise synchronization of pulses is required.
  • Published In

  • Optics Express  Journal
  • Digital Object Identifier (doi)

    Author List

  • KARKI K; FEDOROV V; MARTYSHKIN D; MIROV S
  • Start Page

  • 4287
  • End Page

  • 4295
  • Volume

  • 29
  • Issue

  • 3