SLM, narrow linewidth, coherence
MSL-III-638L638 nm red single-frequency laser
638 nmMSL-III-638L is a 638 nm Single-Frequency laser. Used for raman spectroscopy, speckle interferometry, bio-instrumentation, metrology. Spectral linewidth <100 MHz. Key specifications: output / average power 1~40 mW, operating mode CW, power stability (rms, 4 hours ± 3°c) <2%, <1%, <0.5%. View specifications, datasheet and enquiry options from Precisometer.
Specifications
MSL-III-638L
21 specification rows
| Output / average power | 1~40 mW |
|---|---|
| Beam / notes | Spectral linewidth <100 MHz |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Transverse mode | Near TEM00 |
| Longitudinal mode | Single |
| Spectral line width (MHz) | <100, (<50 optional) |
| Noise of amplitude (rms, 20Hz-20MHz) | <1%, <0.5% |
| M2 | <1.5 |
| Beam divergence, full angle (mrad) | <1.2 |
| Warm-up time (minutes) | <5 |
| Operating temperature (℃) | 10-35 |
| Power supply (100-240VAC) | PSU-III-FDA |
| Expected lifetime (hours) | >10000 |
| Central wavelength (nm) | 638±0.5 |
| Output power (mW) | 1-40 |
| Coherent length (m) | >2 |
| M² | <1.5 |
| Beam diameter at the aperture (1/e2, mm) | <3 |
| Polarization ratio | >50:1, (>100:1 optional) Horizontal±5 degree (Vertical optional) |
| Beam height from base plate (mm) | 24.8 |
Applications
Uses named on this model’s datasheet.
- Raman spectroscopy
- Speckle interferometry
- Bio-instrumentation
- Metrology
- Sensing
- Analytical instrumentation
Need this configured?
Share wavelength, operating mode, output power or pulse energy, linewidth or pulse width, delivery, control, and safety requirements and we will qualify the matching configuration and lead time.
Related single-frequency lasers
Compare the MSL-III-638L with nearby single-frequency lasers across the wavelength range.
