SLM, narrow linewidth, coherence
639639 nm red narrow-linewidth single-frequency laser
639 nmThe 639 is a 639 nm laser source. Output power describes the optical energy delivered per second. At the sample, irradiance also depends on the beam area and losses through the optical path, so the delivered spot must be considered along with the source rating.
Specifications
639
3 specification rows
| Wavelength | 639 nm |
|---|---|
| Output / average power | 1~650 mW |
| Spectral linewidth | <1 MHz |
| M² | <1.1 |
What do you need?
The full datasheet for this model is on request. Tell us the output power, linewidth and beam delivery you need, and we'll reply with the matching configuration and lead time.
Model selection
Nearby series comparison
Compare 639 with the closest available models in the Single-Frequency Lasers family.
| Selection parameter | 639 (current) | MSL-R-639 | MSL-DU-639-W |
|---|---|---|---|
| Wavelength | 639 nm | 639 nm | 639 nm |
| Optical power / pulse energy | 1~650 mW | 650~3000 mW | 1~750 mW |
| Beam quality | <1.1 | <1.3 | <1.2 |
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