SLM, narrow linewidth, coherence
MDL-HD-444444 nm violet single-frequency laser
444 nmThe MDL-HD-444 is a 444 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. The TTL and analog modulation options control different things: TTL gates the beam on and off, while analog control varies its intensity. Modulation bandwidth sets how quickly the source can follow a changing command.
Specifications
MDL-HD-444
12 specification rows
| Output / average power | 8~16 W |
|---|---|
| Beam / notes | Narrow Linewidth Violet Blue Laser |
| Central wavelength (nm) | 444±5 |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Transverse mode | Multimode |
| Warm-up time (minutes) | <5 |
| Beam height from base plate (mm) | 25 |
| Operating temperature (℃) | 25±3 |
| Power supply (100-240VAC) | PSU-N-FDA/PSU-N-LED |
| Modulation option | DC-1kHz, 1kHz-10kHz, 10kHz-30kHz optional; TTL and Analog optional |
| Expected lifetime (hours) | >10000 |
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Model selection
Nearby series comparison
Compare MDL-HD-444 with the closest available models in the Single-Frequency Lasers family.
| Selection parameter | MDL-HD-444 (current) | MDL-E-444 | TUN-443~445 |
|---|---|---|---|
| Wavelength | 444 nm | 444 nm | 444 nm |
| Optical power / pulse energy | 8~16 W | 1~50 mW | 1~400 mW |
| Operating mode / pulse width | CW | CW | — |
| Beam quality | Multimode | Multimode | — |
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