Pulse energy, repetition rate, pulse width
MDL-PS-642642 nm red pulsed laser
642 nmThe MDL-PS-642 is a 642 nm pulsed direct diode laser. Electrical current creates optical gain in a semiconductor junction, and the diode generates the laser light directly. Optical feedback selects the oscillating modes, while drive current and junction temperature affect output power and wavelength. Pulse duration sets how briefly the energy is delivered, while repetition rate sets the interval between pulses; average power alone does not describe the peak intensity at the sample.
Specifications
MDL-PS-642
12 specification rows
| Wavelength | 642 nm |
|---|---|
| Operating mode | Pulsed |
| Output / average power | 1~50 mW |
| Beam / notes | Pulse width 100~1000 ps |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| M2 | <1.5 / <1.2 |
| Beam divergence, full angle (mrad) | <1.0 |
| Warm-up time (minutes) | <5 |
| Cooled method | Conduction |
| Operating temperature (°C) | 10-35 |
| Power supply (100-240VAC) | PSU-III-FDA/PSU-III-LED/PSU-A-D/PSU-III-OEM |
| Expected lifetime (hours) | >10000 |
| 100kHz-20MHz | 3 20MHz-80MHz |
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Model selection
Nearby series comparison
Compare MDL-PS-642 with the closest available models in the Pulsed Lasers family.
| Selection parameter | MDL-PS-642 (current) | MDL-NS-642 | MDL-NS-640 |
|---|---|---|---|
| Wavelength | 642 nm | 642 nm | 640 nm |
| Optical power / pulse energy | 1~50 mW | 1~200 mW | 1~200 mW |
| Operating mode / pulse width | Pulsed | Pulsed | Pulsed |
| Beam quality | <1.0 | — | <1.2 |
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