Power stability, linewidth, beam quality
MLL-H-440440 nm violet CW laser
440 nmThe MLL-H-440 is a 440 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
MLL-H-440
16 specification rows
| Output / average power | 1~3 W |
|---|---|
| Beam / notes | Laser |
| Central wavelength (nm) | 440±5 |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Transverse mode | Multimode |
| Noise of amplitude (rms, 20Hz-20MHz) | <1%, <0.5% |
| Beam diameter at the aperture (1/e2, mm) | ~2.7×2.7 |
| Beam divergence, full angle (mrad) | 1.4×0.2 |
| Warm-up time (minutes) | <5 |
| Cooled method | Air cooled |
| Beam height from base plate (mm) | 29 |
| Operating temperature (°C) | 10-35 |
| Power supply (100-240VAC) | PSU-H-FDA/PSU-H-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 MLL-H-440 with the closest available models in the CW Lasers family.
| Selection parameter | MLL-H-440 (current) | MLL-III-440 | MDL-III-440 |
|---|---|---|---|
| Wavelength | 440 nm | 440 nm | 440 nm |
| Optical power / pulse energy | 1~3 W | 1~1000 mW | 1~1000 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | Multimode | Multimode | Multimode |
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