Lasing in 15 atm CO2 cell optically pumped by a Fe:ZnSe laser

Academic Article

Abstract

  • 10 µm lasing is studied in a compact CO2-He cell pressurized up to 15 atm when optically pumped by a ∼50 mJ Fe:ZnSe laser tunable around 4.3 µm. The optimal pump wavelength and partial pressure of CO2 for generating 10 µm pulses are found to be ∼4.4 µm and 0.75 atm, respectively. Without cavity optimization, the optical-to-optical conversion efficiency reached ∼10% at a total pressure of 7 atm. The gain lifetime is measured to be ∼1 µs at pressures above 10 atm, indicating the feasibility of using high-pressure optically pumped CO2 for the efficient amplification of picosecond 10 µm pulses.
  • Published In

  • Optics Express  Journal
  • Digital Object Identifier (doi)

    Author List

  • Tovey D; Pigeon J; Tochitsky S; Louwrens G; Ben-Zvi I; Martyshkin D; Fedorov V; Karki K; Mirov S; Joshi C
  • Start Page

  • 31455
  • End Page

  • 31464
  • Volume

  • 29
  • Issue

  • 20