Power stability, linewidth, beam quality
MLL-III-655L655 nm red CW laser
655 nmThe MLL-III-655L is a 655 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-655L
17 specification rows
| Output / average power | 1~180 mW |
|---|---|
| Beam / notes | Low Noise Red 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) | 655±10 |
| 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-655L with the closest available models in the CW Lasers family.
| Selection parameter | MLL-III-655L (current) | MDL-C-655 | MLL-III-655 |
|---|---|---|---|
| Wavelength | 655 nm | 655 nm | 655 nm |
| Optical power / pulse energy | 1~180 mW | 1~80 mW | 1~1000 mW |
| Operating mode / pulse width | CW | — | CW |
| Beam quality | Near TEM00 | — | Multimode |
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