Power stability, linewidth, beam quality
MSL-R-721 is a 721 nm CW laser. Used for flow cytometry, dna sequencing, medical imaging, collimation. Laser. Key specifications: output / average power 300~1000 mW, operating mode CW, power stability (rms, 4 hours, ±3°c) <3%, <2%, <1%. View specifications, datasheet and enquiry options from Precisometer.
Specifications
21 specification rows
| Wavelength | 721 nm |
|---|---|
| Output / average power | 300~1000 mW |
| Beam / notes | Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours, ±3°C) | <3%, <2%, <1% |
| Transverse mode | TEM00 |
| Longitudinal mode | Single |
| Noise of amplitude (rms, 20Hz-20MHz) | <0.5% |
| M2 | <1.3 |
| Beam diameter at the aperture (1/e2, mm) | ~1.5 |
| Polarization ratio | >100:1, Vertical (Horizontal optional) |
| Spectral line width (nm) | <5MHz |
| Pointing stability over temperature (μrad/°C) | <8 |
| Cooled method (water cooled) | WCH-580 |
| Operating temperature (°C) | 20-30 |
| Power supply (90-264VAC) | PSU-W-FDA |
| Expected lifetime (hours) | >10000 |
| M² | <1.3 |
| Beam divergence, full angle (mrad) | <1.5 |
| Pointing stability (μrad) (over 2 hours after warm-up and ±3°C) | <50 |
| Coherent length (m) | >50 |
| Warm-up time (minutes) | <15 |
Application context
Typical uses for this laser type, with the selection logic tied to the model record.
MSL-R-721: 721 nm emission can be matched to the absorption or excitation band used in Flow cytometry. The stated stability or noise figure (<3%, <2%, <1%) helps keep measured intensity changes attributable to the sample rather than source drift.
MSL-R-721: 721 nm emission can be matched to the absorption or excitation band used in DNA sequencing. The stated stability or noise figure (<3%, <2%, <1%) helps keep measured intensity changes attributable to the sample rather than source drift.
MSL-R-721: 721 nm emission can be matched to the absorption or excitation band used in Medical imaging. The stated stability or noise figure (<3%, <2%, <1%) helps keep measured intensity changes attributable to the sample rather than source drift.
MSL-R-721: Collimation benefits from a stable, focusable source. 721 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (TEM00) informs waist size and propagation.
System integration
Use these checks to connect MSL-R-721 to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Cooled method (water cooled): WCH-580 · Operating temperature (°C): 20-30. Provide the stated cooling method and keep the laser-head base thermally coupled; temperature drift moves wavelength, output power and beam pointing.
Transverse mode: TEM00 · M2: <1.3. 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.
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 MSL-R-721 with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | MSL-R-721 (current) | MSL-FN-721 | MLL-FN-721 |
|---|---|---|---|
| Wavelength | 721 nm | 721 nm | 721 nm |
| Optical power / pulse energy | 300~1000 mW | 1~300 mW | 1~800 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | TEM00 | TEM00 | TEM00 |
Compare the MSL-R-721 with nearby cw lasers across the wavelength range.
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