Power stability, linewidth, beam quality
PGL/MDL-L series637 nm red CW laser
637 nmThe PGL/MDL-L series is a 637 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
PGL/MDL-L series
15 specification rows
| Wavelength | 637 nm |
|---|---|
| Output / average power | Line beam |
| Beam / notes | Series: PGL/MDL-L series |
| Operating mode | CW |
| Power stability(rms, over 4 hours) | <5%, <3%, <1% |
| Transverse mode | Near TEM00 |
| Beam divergence, full angle (mrad) | <0.5 |
| Warm-up time | minutes / <10 |
| Expected lifetime (hours) | 10000 |
| Warranty (years) | 1 |
| Operating voltage(PSU-II-OEM) | 7V / (TTL30kHz or Analog 0-5V,optional) |
| Connection | Cable with flying leads |
| Operating temperature | -10°C to 50°C |
| Storage temperature | -20°C to 80°C |
| Humidity | < 90%, non-condensing |
| Dimensions of laser head | 77(L)×30(W)×30(H)mm3 |
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Model selection
Nearby series comparison
Compare PGL/MDL-L series with the closest available models in the CW Lasers family.
| Selection parameter | PGL/MDL-L series (current) | PGL/MDL-L series | Long Coherence Length |
|---|---|---|---|
| Wavelength | 637 nm | 405 nm | 637 nm |
| Optical power / pulse energy | Line beam | 1~1000 mW | 1-50 mW |
| Operating mode / pulse width | CW | CW | — |
| Beam quality | Near TEM00 | Near TEM00 | — |
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