SLM, narrow linewidth, coherence
638638 nm red narrow-linewidth single-frequency laser
638 nmThe 638 is a 638 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
638
3 specification rows
| Wavelength | 638 nm |
|---|---|
| Output / average power | 1~40 mW |
| Spectral linewidth | <100 MHz |
| M² | <1.5 |
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 638 with the closest available models in the Single-Frequency Lasers family.
| Selection parameter | 638 (current) | MSL-III-638L | Narrow Linewidth |
|---|---|---|---|
| Wavelength | 638 nm | 638 nm | 637 nm |
| Optical power / pulse energy | 1~40 mW | 1~40 mW | 1-50 mW |
| Beam quality | <1.5 | <1.5 | — |
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