Power stability, linewidth, beam quality
MSL-R-721721 nm red CW laser
721 nmThe MSL-R-721 is a 721 nm continuous-wave solid-state laser. Light is amplified in a solid gain medium inside an optical resonator. The resonator feeds light back through that medium to build the laser beam. The pump arrangement and cooling determine how energy is supplied and waste heat is removed. Single-longitudinal-mode operation selects one resonator frequency. Linewidth describes the spread around that frequency, while frequency drift describes how its center moves over time. This distinction matters when matching the source to a narrow resonance or an interferometer.
Specifications
MSL-R-721
23 specification rows
| 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 |
| Wavelength (nm) | 721±1 |
| M² | <1.3 |
| Beam divergence, full angle (mrad) | <1.5 |
| Pointing stability (μrad) (over 2 hours after warm-up and ±3°C) | <50 |
| Beam height from base plate (mm) | 65 |
| Coherent length (m) | >50 |
| Warm-up time (minutes) | <15 |
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Model selection
Nearby series comparison
Compare MSL-R-721 with the closest available models in the CW Lasers family.
| Selection parameter | MSL-R-721 (current) | MSL-R-721 | MSL-FN-721 |
|---|---|---|---|
| Wavelength | 721 nm | 721 nm | 721 nm |
| Optical power / pulse energy | 300~1000 mW | 300~1000 mW | 1~300 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | <1.3 | <1.3 | <1.2 |
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