Power stability, linewidth, beam quality
PGL-LF-638638 nm red CW laser
638 nmThe PGL-LF-638 is a 638 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. The TTL and analog modulation options control different things: TTL gates the beam on and off, while analog control varies its intensity. Modulation bandwidth sets how quickly the source can follow a changing command.
Specifications
PGL-LF-638
10 specification rows
| Wavelength | 638 nm |
|---|---|
| Output / average power | 1~130 mW |
| Beam / notes | OEM Red Laser |
| Beam divergence (mrad) | <1.5 |
| Laser operation mode | CW |
| Modulation optional | TTL 30kHz or analog (0-3V or 0-5V) |
| Connection | Cable with flying leads |
| Operating temperature (°C) | -10°C to +45°C |
| Storage temperature (°C) | -20°C to +80°C |
| Humidity (%) | < 90 %, non-condensing |
| Weight (g) | 45g |
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Model selection
Nearby series comparison
Compare PGL-LF-638 with the closest available models in the CW Lasers family.
| Selection parameter | PGL-LF-638 (current) | YL-I-638 | LDM-638-10-2 |
|---|---|---|---|
| Wavelength | 638 nm | 638 nm | 638 nm |
| Optical power / pulse energy | 1~130 mW | 1~40 W | 10 W |
| Beam quality | <1.5 | — | — |
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