Power stability, linewidth, beam quality
PGL/MDL-L series is a 637 nm CW laser. Used for flow cytometry, dna sequencing, medical imaging, collimation. Key specifications: output / average power Line beam, operating mode CW, power stability(rms, over 4 hours) <5%, <3%, <1%. View specifications, datasheet and enquiry options from Precisometer.
Specifications
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 |
Application context
Typical uses for this laser type, with the selection logic tied to the model record.
PGL/MDL-L series: 637 nm emission can be matched to the absorption or excitation band used in Flow cytometry. The stated stability or noise figure (<5%, <3%, <1%) helps keep measured intensity changes attributable to the sample rather than source drift.
PGL/MDL-L series: 637 nm emission can be matched to the absorption or excitation band used in DNA sequencing. The stated stability or noise figure (<5%, <3%, <1%) helps keep measured intensity changes attributable to the sample rather than source drift.
PGL/MDL-L series: 637 nm emission can be matched to the absorption or excitation band used in Medical imaging. The stated stability or noise figure (<5%, <3%, <1%) helps keep measured intensity changes attributable to the sample rather than source drift.
PGL/MDL-L series: Collimation benefits from a stable, focusable source. 637 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 PGL/MDL-L series to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Operating temperature: -10°C to 50°C. 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 divergence, full angle (mrad): <0.5. 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.
Dimensions of laser head: 77(L)×30(W)×30(H)mm3. Verify the housing drawing and bolt length before designing a mount. A laser head rarely carries a table thread itself, so the adapter between it and an M6 or 1/4"-20 grid is part of the specification.
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 PGL/MDL-L series with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | PGL/MDL-L series (current) | Long Coherence Length | TUN-628~637 |
|---|---|---|---|
| Wavelength | 637 nm | 637 nm | 637 nm |
| Optical power / pulse energy | Line beam | 1-50 mW | Wavelength tunable |
| Operating mode / pulse width | CW | Confirm for this model | Confirm for this model |
| Beam quality | Near TEM00 | Confirm for this model | Confirm for this model |
Compare the PGL/MDL-L series with nearby cw lasers across the wavelength range.
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