Pulse energy, repetition rate, pulse width
MPL-N-257257 nm deep-UV Q-switched pulsed laser
257 nmThe MPL-N-257 is a 257 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 5 ns deliver the energy in a brief interval; pulse energy and focused spot size determine the intensity at the sample.
Specifications
MPL-N-257
20 specification rows
| Operating mode | Passively Q-switched |
|---|---|
| Output / average power | 1~15 mW |
| Pulse energy | 0.1~4 uJ |
| Beam / notes | Passively Q-switched UV Laser |
| Pulse duration (ns) | ~5 |
| Wavelength (nm) | 257±1 |
| Max average power (mW) | 1-15 |
| Single pulse energy (µJ) | 0.1-4 |
| Peak power (kW) | 0.02-0.8 |
| Rep. rate (kHz) | 2-5 |
| Ave power stability (over 4 hours) | <5%, <3% |
| Transverse mode | Near TEM00 |
| M² | <2.0 |
| Beam diameter at the aperture (mm) | ~1.0 |
| Polarization ratio | >50:1, Horizontal (Vertical optional) |
| Warm-up time (minutes) | <5 |
| Beam height from base plate (mm) | 70 |
| Operating temperature (°C) | 10-35 |
| Power supply (100-240VAC) | PSU-Q-FDA/PSU-Q-LED |
| Expected lifetime (hours) | >10000 |
What do you need?
Tell us the pulse energy, pulse width, repetition rate and beam delivery you need, and we'll reply with the matching configuration and lead time.
Model selection
Nearby series comparison
Compare MPL-N-257 with the closest available models in the Pulsed Lasers family.
| Selection parameter | MPL-N-257 (current) | AO-S-261-H | AO-S-261-H/1-15uJ |
|---|---|---|---|
| Wavelength | 257 nm | 261 nm | 261 nm |
| Optical power / pulse energy | 1~15 mW | 1~15 mW | 1-15 mW |
| Operating mode / pulse width | Passively Q-switched | Actively Q-switched | Q-switched |
| Beam quality | <2.0 | <2 | — |
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