Power stability, linewidth, beam quality
MLL-DP-639-B639 nm red CW laser
639 nmThe MLL-DP-639-B is a 639 nm continuous-wave diode-pumped solid-state laser. Laser diodes optically pump a solid gain medium inside a resonator. The pump supplies the energy; repeated passes through the gain medium amplify the laser light. Continuous-wave operation provides a sustained beam for experiments that need steady illumination.
Specifications
MLL-DP-639-B
17 specification rows
| Output / average power | 2000~8000 mW |
|---|---|
| Beam / notes | Low Noise Red Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours±3℃) | <3%, <2%, <1% |
| Spectral line width (nm) | <0.003, <0.01, <0.1 |
| Noise of amplitude (rms, 20Hz-20MHz) | <1% |
| Transverse mode | Near TEM00 (TEM00 optional) |
| Beam divergence, full angle (mrad) | <3.0 |
| Warm-up time (minutes) | <10 |
| Polarization ratio | >100:1, Horizontal (Vertical optional) |
| Cooled method (Water Cooled) | WCH-580 |
| Operating temperature (℃) | 10-35 |
| Power supply (100-240VAC) | PSU-W-FDA |
| Expected lifetime (hours) | >10000 |
| Central wavelength (nm) | 639±1 |
| Beam diameter at the aperture (1/e2, mm) | ~2.0 |
| Beam height from base plate (mm) | 58.5 |
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Model selection
Nearby series comparison
Compare MLL-DP-639-B with the closest available models in the CW Lasers family.
| Selection parameter | MLL-DP-639-B (current) | MSL-FN-639 | MSL-R-639 |
|---|---|---|---|
| Wavelength | 639 nm | 639 nm | 639 nm |
| Optical power / pulse energy | 2000~8000 mW | 1~650 mW | 650~3000 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | Near TEM00 (TEM00 optional) | <1.2,<1.1 | <1.3 |
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