Quasi-continuous burst-mode laser for high-speed planar imaging

Mikhail N Slipchenko; Joseph D Miller; Sukesh Roy; James R Gord; Stephen A Danczyk; Terrence R Meyer

doi:10.1364/OL.37.001346

Quasi-continuous burst-mode laser for high-speed planar imaging

Opt Lett. 2012 Apr 15;37(8):1346-8. doi: 10.1364/OL.37.001346.

Authors

Mikhail N Slipchenko¹, Joseph D Miller, Sukesh Roy, James R Gord, Stephen A Danczyk, Terrence R Meyer

Affiliation

¹ Spectral Energies, LLC, Dayton, Ohio 45431, USA.

PMID: 22513681
DOI: 10.1364/OL.37.001346

Abstract

The pulse-burst duration of a compact burst-mode Nd:YAG laser is extended by one order of magnitude compared to previous flashlamp-pumped designs by incorporating a fiber oscillator and diode-pumped solid-state amplifiers. The laser has a linewidth of <2 GHz at 1064.3 nm with 150 mJ per individual pulse at 10 kHz. The performance of the system is evaluated by using the third-harmonic output at 354.8 nm for high-speed planar laser-induced fluorescence of formaldehyde in a lifted methane-air diffusion flame. A total of 100 and 200 sequential images of unsteady fluid-flame interactions are acquired at repetition rates of 10 kHz and 20 kHz, respectively.