Pulse energy, repetition rate, pulse width
AO-DF-248248 nm deep-UV Q-switched pulsed laser
248 nmThe AO-DF-248 is a 248 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 10 ns deliver the energy in a brief interval; pulse energy and focused spot size determine the intensity at the sample.
Specifications
AO-DF-248
15 specification rows
| Operating mode | Q-switched |
|---|---|
| Output / average power | 1~120 mW |
| Pulse energy | 1-24 uJ |
| Beam / notes | Q-switched UV Laser |
| Rep.rate (kHz) | 4-5 |
| Power stability (rms, over 4 hours) | <3%, <2% |
| Polarization ratio | >100:1 |
| Warm-up time (minutes) | <10 |
| Warranty period | 1 year |
| Wavelength (nm) | 248±1 |
| Pulse duration (ns) | ~10@ 5kHz&120mW |
| Single pulse energy (µJ) | 1-24 |
| Peak power(W) | 100-2400 |
| Beam divergence, full angle (mrad) | <6*2 |
| Beam diameter at the aperture (1/e2, mm) | ~2*1 |
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