Pulse energy, repetition rate, pulse width
MDL-NS-633633 nm red pulsed laser
633 nmThe MDL-NS-633 is a 633 nm nanosecond 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-NS-633
24 specification rows
| Operating mode | Pulsed |
|---|---|
| Output / average power | 1~100 mW |
| Beam / notes | Pulse width 10 ns~10 ms |
| 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 |
| Central wavelength (nm) | 633±3 |
| Peak power (mW) | 1-100 |
| Pulse width (FWHM) | 10ns-10ms |
| Transverse mode | Near TEM00 |
| M² | <1.2 |
| Beam diameter at the aperture (1/e2,mm) | ~1.2 |
| Polarization ratio | >50:1, (>100:1 optional) Horizontal±5 degree (Vertical optional) |
| Rep. rate | DC-20MHz |
| Rise Time (ns) | <4 |
| Fall Time (ns) | <3 |
| Modulation Depth (extinction ratio) | >1000000:1 |
| Beam height from base plate (mm) | 19 |
| Operating voltage (VDC) | 12V/3.34A |
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Model selection
Nearby series comparison
Compare MDL-NS-633 with the closest available models in the Pulsed Lasers family.
| Selection parameter | MDL-NS-633 (current) | MDL-PS-633 | MDL-NS-635 |
|---|---|---|---|
| Wavelength | 633 nm | 633 nm | 635 nm |
| Optical power / pulse energy | 1~100 mW | 1~50 mW | 1-200 mW |
| Operating mode / pulse width | Pulsed | Pulsed | Pulsed |
| Beam quality | <1.2 | <1.0 | <1.2 |
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