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. 2023 Oct 6;23(19):8262. doi: 10.3390/s23198262

Table 1.

Technical specification of the selected micro-pulse laser source.

Laser Nd:YAG
Wavelength (nm) 354.7 ± 1.0
Operating mode Acousto-Optic Q-switched
Average power (W) 1–5 (6 W @ 30 kHz)
Rep. rate (kHz) 10–40
Pulse energy @10 kHz (μJ) 190
Pulse energy @20 kHz (μJ) 250
Pulse energy @30 kHz (μJ) 200
Pulse energy @40 kHz (μJ) 140
Pulse width (ns) ~12 @ 30 kHz
Warm-up time (minutes) <10
Transverse mode TEM00
Beam diameter
(after 10× beam expander, mm)
8
Beam divergence, full angle (after 10 × beam expander, mrad) <0.3
Beam quality (M2) <1.3
Polarization ratio/Direction >100:1, Horizontal
Cooling method Water Cooled
Oper. envir. temp. (°C) 15–35
Supply Voltage DC 12 V (≥25 A)
Size (mm) 450 × 180 × 95
Weight (kg) 10