SLM, narrow linewidth, coherence
MSL-R-721721 nm red narrow-linewidth single-frequency 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
21 specification rows
| Output / average power | 300~1000 mW |
|---|---|
| Spectral linewidth | <5 MHz |
| M² | <1.3 |
| Operating mode | CW |
| Power stability (rms, 4 hours, ±3°C) | <3%, <2%, <1% |
| Transverse mode | TEM00 |
| Longitudinal mode | Single |
| Beam diameter at the aperture (1/e2, mm) | ~1.5 |
| Polarization ratio | >100:1, Vertical (Horizontal optional) |
| 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 |
| Noise of amplitude (rms, 20Hz-20MHz) | <0.5% |
| 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
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