Pulse energy, repetition rate, pulse width
HPL-440-QM440 nm violet Q-switched pulsed laser
440 nmThe HPL-440-QM is a 440 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. At the nominal 5 kHz repetition rate, pulses lasting approximately 100 ns arrive about 200 µs apart.
Specifications
HPL-440-QM
15 specification rows
| Operating mode | Q-switched |
|---|---|
| Output / average power | 3~6 W |
| Beam / notes | Q-switched Violet Blue Laser |
| Wavelength (nm) | 440±1 |
| Pulse duration (ns) | ~ 100 @5kHz&6W |
| Rep. rate | 5kHz |
| Ave power stability (rms, 4 hours±3℃) | <5%, <3% |
| Beam divergence, full angle (mrad) | <3.5 |
| Beam diameter at the aperture (1/e2,mm) | <6 |
| Beam height from base plate (mm) | 60 |
| Warm-up time (minutes) | <10 |
| Cooled method | Water Cooled |
| Operating temperature (℃) | 15-35 |
| Power supply (220-240AC) | PSU-HPL-Q & PSU-HPL-CW |
| Expected lifetime (hours) | >10000 |
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Model selection
Nearby series comparison
Compare HPL-440-QM with the closest available models in the Pulsed Lasers family.
| Selection parameter | HPL-440-QM (current) | HPL-440-Q | MDL-NS-445 |
|---|---|---|---|
| Wavelength | 440 nm | 440 nm | 445 nm |
| Optical power / pulse energy | 3~6 W | 1~3000 mW | 1~80 mW |
| Operating mode / pulse width | Q-switched | Q-switched | Pulsed |
| Beam quality | <3.5 | <3.5 | <1.2 |
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