SLM, narrow linewidth, coherence
TUN-628-637631 nm red tunable single-frequency laser
631 nmThe TUN-628-637 is a 631 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. Continuous-wave operation provides a sustained beam for experiments that need steady illumination.
Specifications
TUN-628-637
11 specification rows
| Wavelength | 631 nm |
|---|---|
| Output / average power | 1~40 mW |
| Beam / notes | Narrow Linewidth Red Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <3%, <2%, <1% |
| Transverse mode | Near TEM00 |
| Beam divergence, full angle (mrad) | <1.0 |
| 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 |
What do you need?
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Model selection
Nearby series comparison
Compare TUN-628-637 with the closest available models in the Single-Frequency Lasers family.
| Selection parameter | TUN-628-637 (current) | TUN-628-637 | 633 |
|---|---|---|---|
| Wavelength | 631 nm | 628 nm | 633 nm |
| Optical power / pulse energy | 1~40 mW | 1~40 mW | 1~30 mW |
| Operating mode / pulse width | CW | CW | — |
| Beam quality | Near TEM00 | Near TEM00 | <1.5 |
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