SLM, narrow linewidth, coherence
MDL-E-400400 nm violet single-frequency laser
400 nmThe MDL-E-400 is a 400 nm continuous-wave 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. Continuous-wave operation provides a sustained beam for experiments that need steady illumination.
Specifications
MDL-E-400
18 specification rows
| Output / average power | 1~50 mW |
|---|---|
| Beam / notes | Linewidth <0.03 nm |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Transverse mode | Multimode |
| Beam divergence, full angle (mrad) | ~2.5×0.2 |
| Warm-up time (minutes) | <5 |
| Cooled method | Air cooled |
| Operating temperature (°C) | 10-35 |
| Power supply (100-240VAC) | PSU-H-FDA/PSU-H-LED |
| Expected lifetime (hours) | >10000 |
| Central wavelength (nm) | 400±1 |
| Spectral line width (nm) | <0.06, <0.03 |
| Frequency shift (pm) (over ±2°C and 2hrs) | <20 |
| M² | <1.5 |
| Beam diameter at the aperture (1/e2, mm) | ~1.3 |
| Polarization ratio | >50:1, (>100:1 optional) Horizontal±5 degree (Vertical optional) |
| Beam height from base plate (mm) | 30 |
What do you need?
Tell us the output power, linewidth and beam delivery you need, and we'll reply with the matching configuration and lead time.
Model selection
Nearby series comparison
Compare MDL-E-400 with the closest available models in the Single-Frequency Lasers family.
| Selection parameter | MDL-E-400 (current) | MLL-III-395 | MLL-III-395L |
|---|---|---|---|
| Wavelength | 400 nm | 395 nm | 395 nm |
| Optical power / pulse energy | 1~50 mW | 1~100 mW | 1~100 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | <1.5 | Multimode | Near TEM00 |
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