Power stability, linewidth, beam quality
TUN-6 34~643637 nm red tunable CW laser
637 nmTUN-6 34~643 is a 637 nm CW laser. Used for scientific research, teaching, holographic imaging, raman. Key specifications: output / average power Wavelength tunable, wavelength range of roughly tuning (nm) 634-643, operating mode CW. View specifications, datasheet and enquiry options from Precisometer.
Specifications
TUN-6 34~643
21 specification rows
| Wavelength | 637 nm |
|---|---|
| Output / average power | Wavelength tunable |
| Beam / notes | Series: TUN-634~643 |
| Wavelength range of roughly tuning (nm) | 634-643 |
| Operating mode | CW |
| Output power (mW) | 1-40 |
| Power stability (rms, 4 hours ± 3°C) | <3%, <2%, <1% |
| Transverse mode | Near TEM00 |
| Spectral line width (nm) | <0.1 |
| Frequency shift (pm) (over ±2°C and 1hrs) | <10 |
| Coarse tuning accuracy (nm) | ~0.1 |
| Fine tuning range (GHz) | >40 (60pm) |
| Fine tuning accuracy (nm) | 0.001 |
| Beam diameter at the aperture (1/e2, mm) | ~3.0 |
| Beam divergence, full angle (mrad) | <1.0 |
| Polarization ratio | >50:1, (>100:1 optional) Horizontal±5 degree |
| Warm-up time (minutes) | <5 |
| Beam height from base plate (mm) | 40 |
| Operating temperature (℃) | 20-30 |
| Power supply (100-240VAC) | PSU-TUN |
| Parameters of customed power supply | Current : 0-270mA |
| Expected lifetime (hours) | >10000 |
Applications
Uses named on this model’s datasheet.
- Scientific research
- Teaching
- Holographic imaging
- Raman
- Atomic clock
- Coherent detection
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 cw lasers
Compare the TUN-6 34~643 with nearby cw lasers across the wavelength range.


