Pulse energy, repetition rate, pulse width
AO-U-639-DP639 nm red Q-switched pulsed laser
639 nmThe AO-U-639-DP is a 639 nm nanosecond diode-pumped solid-state laser. Laser diodes optically pump a solid gain medium inside a resonator. The pump supplies the energy; repeated passes through the gain medium amplify the laser light. Q-switching stores energy in the gain medium while resonator losses are high, then lowers those losses to release a pulse. Pulse energy and repetition rate must be considered together, because changing the pulse spacing changes the average power for a fixed pulse energy. Pulses lasting approximately 18 ns deliver the energy in a brief interval; pulse energy and focused spot size determine the intensity at the sample.
Specifications
AO-U-639-DP
19 specification rows
| Operating mode | Actively Q-switched |
|---|---|
| Output / average power | 1~700 mW |
| Pulse energy | 1~140 uJ |
| Beam / notes | Actively Q-switched Red Laser |
| Power stability (rms, 4 hours, ±3°C) | <5%, <3% |
| Beam diameter at the aperture 1/e2 (mm) | <2.0 |
| Warm-up time (minutes) | <10 |
| Operating temperature (℃) | 10-35 |
| Cooled method | Water cooled |
| Power supply (12VDC) | 12V/25A |
| Expected lifetime (hours) | >10000 |
| Wavelength (nm) | 639±1 |
| Single pulse energy (μJ) | 1-140@5kHz |
| Pulse duration (ns) | ~18@5kHz |
| Peak power (kW) | 0.1-7.8@5kHz |
| Rep. rate (kHz) | 1-30 |
| Transverse mode | TEM00 |
| Beam divergence, full angle (mrad) | <2.0 |
| Beam height from base plate (mm) | 99.5 |
What do you need?
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Model selection
Nearby series comparison
Compare AO-U-639-DP with the closest available models in the Pulsed Lasers family.
| Selection parameter | AO-U-639-DP (current) | MDL-NS-640 | MDL-PS-640 |
|---|---|---|---|
| Wavelength | 639 nm | 640 nm | 640 nm |
| Optical power / pulse energy | 1~700 mW | 1~200 mW | 1~50 mW |
| Operating mode / pulse width | Actively Q-switched | Pulsed | Pulsed |
| Beam quality | TEM00 | <1.2 | <1.0 |
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