Power stability, linewidth, beam quality
MLL-III-420L420 nm violet CW laser
420 nmThe MLL-III-420L is a 420 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-III-420L
17 specification rows
| Output / average power | 1~100 mW |
|---|---|
| Beam / notes | Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Transverse mode | Near TEM00 |
| Noise of amplitude (rms, 20Hz-20MHz) | <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) | 420±5 |
| Polarization ratio | >50:1, (>100:1 optional) Horizontal±5 degree (Vertical optional) |
| Beam height from base plate (mm) | 24.8 |
| Modulation option | DC-1kHz, 1kHz-10kHz, 10kHz-30kHz, 30kHz-100kHz optional; TTL and Analog optional |
What do you need?
Tell us the output power, beam quality and beam delivery you need, and we'll reply with the matching configuration and lead time.
Model selection
Nearby series comparison
Compare MLL-III-420L with the closest available models in the CW Lasers family.
| Selection parameter | MLL-III-420L (current) | MLL-III-420 | MLL-H-420 |
|---|---|---|---|
| Wavelength | 420 nm | 420 nm | 420 nm |
| Optical power / pulse energy | 1~100 mW | 1~500 mW | 500~1300 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | Near TEM00 | Multimode | Multimode |
Related cw lasers
Compare the MLL-III-420L with nearby cw lasers across the wavelength range.
