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

Date
2012-04-01
Authors
Slipchenko, Mikhail
Miller, Joseph
Roy, Sukesh
Gord, James
Danczyk, Stephen
Meyer, Terrence
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Altmetrics
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Research Projects
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Mechanical Engineering
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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.

Description

This article is from Optics Letters 37 (2012): 1346, doi: 10.1364/OL.37.001346. Posted with permission.

Keywords
burst-mode, diode-pumped, high-speed, methane-air diffusion flames, YAG lasers, planar imaging, planar laser induced fluorescence, repetition rate, sequential images, solid state amplifier
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