SLM, narrow linewidth, coherence
TUN-626-635 is a 626 nm Single-Frequency laser. Narrow Linewidth Red Laser; Wavelength tunable. Key specifications: output / average power 1~40 mW, operating mode CW, power stability (rms, 4 hours ± 3°c) <3%, <2%, <1%. View specifications, datasheet and enquiry options from Precisometer.
Specifications
20 specification rows
| Wavelength | 626 nm |
|---|---|
| Output / average power | 1~40 mW |
| Beam / notes | Narrow Linewidth Red Laser; Wavelength tunable |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <3%, <2%, <1% |
| Transverse mode | Near TEM00 |
| Spectral line width (nm) | <0.1 |
| Warm-up time (minutes) | <5 |
| Operating temperature (℃) | 20-30 |
| Power supply (100-240VAC) | PSU-TUN |
| Parameters of customed power supply | TEC: 7-12kΩ |
| Expected lifetime (hours) | >10000 |
| Wavelength range of roughly tuning (nm) | 626-635 |
| Frequency shift (pm) (over ±2°C and 1hrs) | <10 |
| Coarse tuning accuracy (nm) | ~0.1 |
| Fine tuning range (GHz) | >40 (55pm) |
| 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 |
| Beam height from base plate (mm) | 40 |
Application context
Typical uses for this laser type, with the selection logic tied to the model record.
TUN-626-635: 626 nm emission determines compatible optics, coatings and detectors for Optical instrumentation. The catalogued beam parameter (Near TEM00) helps predict how the source will focus and propagate through the instrument.
TUN-626-635: Laboratory measurement benefits from a stable, focusable source. 626 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (Near TEM00) informs waist size and propagation.
System integration
Use these checks to connect TUN-626-635 to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Operating temperature (℃): 20-30. Provide the stated cooling method and keep the laser-head base thermally coupled; temperature drift moves wavelength, output power and beam pointing.
Transverse mode: Near TEM00 · Beam diameter at the aperture (1/e2, mm): ~3.0. Size the downstream optics from the stated beam diameter and divergence rather than from the aperture of the housing, and confirm the polarisation state before specifying isolators or polarising optics.
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.
Model selection
Compare TUN-626-635 with the closest available models in the Single-Frequency Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | TUN-626-635 (current) | TUN-628-637 | TUN-628-637 |
|---|---|---|---|
| Wavelength | 626 nm | 628 nm | 631 nm |
| Optical power / pulse energy | 1~40 mW | 1~40 mW | 1~40 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | Near TEM00 | Near TEM00 | Near TEM00 |
Compare the TUN-626-635 with nearby single-frequency lasers across the wavelength range.
Choosing a laser
Which specifications decide the experiment, and which ones cost money without changing the result.
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