All-diode-pumped quasi-continuous burst-mode laser for extended high-speed planar imaging
An all-diode-pumped, multistage Nd: YAG amplifier is investigated as a means of extending
the duration of high-power, burst-mode laser pulse sequences to an unprecedented 30 ms
or more. The laser generates 120 mJ per pulse at 1064.3 nm with a repetition rate of 10 kHz,
which is sufficient for a wide range of planar laser diagnostics based on fluorescence,
Raman scattering, and Rayleigh scattering, among others. The utility of the technique is
evaluated for image sequences of formaldehyde fluorescence in a lifted methane–air …
the duration of high-power, burst-mode laser pulse sequences to an unprecedented 30 ms
or more. The laser generates 120 mJ per pulse at 1064.3 nm with a repetition rate of 10 kHz,
which is sufficient for a wide range of planar laser diagnostics based on fluorescence,
Raman scattering, and Rayleigh scattering, among others. The utility of the technique is
evaluated for image sequences of formaldehyde fluorescence in a lifted methane–air …
Quasi-continuous burst-mode laser for high-speed planar imaging
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 …
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 …