Power stability, linewidth, beam quality
MLL-III-680-SM680 nm red CW laser
680 nmThe MLL-III-680-SM is a 680 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. Continuous-wave operation provides a sustained beam for experiments that need steady illumination.
Specifications
MLL-III-680-SM
11 specification rows
| Wavelength | 680 nm |
|---|---|
| Output / average power | 1~20 mW |
| Beam / notes | Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Noise of amplitude (rms, 20Hz-20MHz) | <1%, <0.5% |
| Beam divergence, full angle (mrad) | <3.0 |
| 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 |
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Model selection
Nearby series comparison
Compare MLL-III-680-SM with the closest available models in the CW Lasers family.
| Selection parameter | MLL-III-680-SM (current) | MLL-III-680 | FC-680 |
|---|---|---|---|
| Wavelength | 680 nm | 680 nm | 680 nm |
| Optical power / pulse energy | 1~20 mW | 1~1500 mW | 1~2 W |
| Operating mode / pulse width | CW | CW | — |
| Beam quality | <3.0 | <3.0 | — |
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