Power stability, linewidth, beam quality
TUN-F-638~644642 nm red tunable CW laser
642 nmThe TUN-F-638~644 is a 642 nm continuous-wave direct diode laser. Electrical current creates optical gain in a semiconductor junction, and the diode generates the laser light directly. Optical feedback selects the oscillating modes, while drive current and junction temperature affect output power and wavelength. Tuning changes the selected output wavelength so spectral features can be scanned with the same source. The tuning band specifies which lines can be reached; linewidth describes the width of the selected line.
Specifications
TUN-F-638~644
18 specification rows
| Output / average power | 1~40 mW |
|---|---|
| Beam / notes | Wavelength Tunable Red Laser |
| Operating mode | CW |
| Transverse mode | TEM00 |
| Power stability (rms, over 4 hours) | <3%, <2%,<1%, |
| Beam quality (M2) | <1.1 |
| Pointing stability after warm-up (mrad) | <0.05 |
| Warm-up time (minutes) | <5 |
| Operating temperature (℃) | 10~30 |
| Power supply (90-264VAC) | PSU-A-D |
| Expected lifetime (hours) | 10000 |
| Warranty period | 1 year |
| Wavelength (nm) | 638~644 |
| Ellipticity | >0.98 |
| Beam divergence, full angle (mrad) | <1.0 |
| Beam diameter at the aperture (1/e2, mm) | ~1.0 |
| Beam height from base plate (mm) | 45 |
| Modulation option | TTL/Analog 1Hz-5KHz, 1Hz-10KHz, 1Hz-30KHz, and TTL on/off |
What do you need?
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Model selection
Nearby series comparison
Compare TUN-F-638~644 with the closest available models in the CW Lasers family.
| Selection parameter | TUN-F-638~644 (current) | MDL-C-642 | TEM-LN-642 |
|---|---|---|---|
| Wavelength | 642 nm | 642 nm | 642 nm |
| Optical power / pulse energy | 1~40 mW | 1~50 mW | 1~100 mW |
| Operating mode / pulse width | CW | — | CW |
| Beam quality | <1.1 | — | <1.1 |
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