Power stability, linewidth, beam quality
MDL-III-442442 nm violet CW laser
442 nmThe MDL-III-442 is a 442 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-III-442
14 specification rows
| Output / average power | 1~1000 mW |
|---|---|
| Beam / notes | High Stability Violet Blue Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Transverse mode | Multimode |
| Beam divergence, full angle (mrad) | <2.1×1.6 / <2.5×0.2 |
| 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) | 442±5 |
| Beam height from base plate (mm) | 24.8 |
| Modulation option | DC-1kHz, 1kHz-10kHz, 10kHz-30kHz, 30kHz-100kHz optional; TTL and Analog optional |
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Model selection
Nearby series comparison
Compare MDL-III-442 with the closest available models in the CW Lasers family.
| Selection parameter | MDL-III-442 (current) | MDL-442(FC) | FC-442 |
|---|---|---|---|
| Wavelength | 442 nm | 442 nm | 442 nm |
| Optical power / pulse energy | 1~1000 mW | 1~3500 mW | 1~20 W |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | Multimode | <1 | — |
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