Power stability, linewidth, beam quality
MLL-III-488L488 nm blue CW laser
488 nmThe MLL-III-488L is a 488 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-488L
18 specification rows
| Output / average power | 1-300 mW |
|---|---|
| Beam / notes | Series: MLL-III-488L |
| Operating mode | CW |
| Power stability (rms, over 4 hours) | <2%, <1%, <0.5% |
| Transverse mode | Near TEM00 |
| M2 | <2, <1.5 |
| Beam divergence, full angle (mrad) | ~1.0 |
| Warm-up time (minutes) | <5 |
| 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) | 488±5 |
| Noise of amplitude (rms, 20Hz-20MHz) | <1%, <0.5% |
| M² | <2, <1.5 |
| Beam diameter at the aperture (1/e2, mm) | ~3.5, ~1.5 |
| 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 |
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Model selection
Nearby series comparison
Compare MLL-III-488L with the closest available models in the CW Lasers family.
| Selection parameter | MLL-III-488L (current) | Long Coherent Length | Low Noise |
|---|---|---|---|
| Wavelength | 488 nm | 488 nm | 488 nm |
| Optical power / pulse energy | 1-300 mW | 1-70 mW | 1-150 mW |
| Operating mode / pulse width | CW | — | — |
| Beam quality | <2, <1.5 | — | TEM 00 |
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