SLM, narrow linewidth, coherence
MSL-R-349 is a 349 nm Single-Frequency laser. Used for flow cytometry, dna sequencing, medical imaging, high - precision measurement. M²: <1.2. Key specifications: output / average power 100~400 mW, spectral linewidth <5 MHz, optical noise <0.5%. View specifications, datasheet and enquiry options from Precisometer.
Specifications
18 specification rows
| Wavelength | 349 nm |
|---|---|
| Output / average power | 100~400 mW |
| Spectral linewidth | <5 MHz |
| Optical noise | <0.5% |
| M² | <1.2 |
| Operating mode | CW |
| Power stability (rms, 4 hours±3℃) | <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 |
| Expected lifetime (hours) | >10000 |
| Coherent length (m) | >50 |
| Noise of amplitude (rms, 20Hz-20MHz) | <1%, <0.5% |
| Pointing Stability(μrad) (over 2 hours after warm-up and ±3°C) | <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-349: 349 nm emission can be matched to the absorption or excitation band used in Flow cytometry. The stated stability or noise figure (<0.5%) helps keep measured intensity changes attributable to the sample rather than source drift.
MSL-R-349: 349 nm emission can be matched to the absorption or excitation band used in DNA sequencing. The stated stability or noise figure (<0.5%) helps keep measured intensity changes attributable to the sample rather than source drift.
MSL-R-349: 349 nm emission can be matched to the absorption or excitation band used in Medical imaging. The stated stability or noise figure (<0.5%) helps keep measured intensity changes attributable to the sample rather than source drift.
MSL-R-349: High - precision measurement benefits from a stable, focusable source. 349 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (<1.2) informs waist size and propagation.
System integration
Use these checks to connect MSL-R-349 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.
M²: <1.2 · Transverse mode: TEM00. 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-349 with the closest available models in the Single-Frequency Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | MSL-R-349 (current) | UV-FN -349-SLM | 3 49 |
|---|---|---|---|
| Wavelength | 349 nm | 349 nm | 349 nm |
| Optical power / pulse energy | 100~400 mW | 50~100 mW | 1~10 mW |
| Operating mode / pulse width | CW | Confirm for this model | Confirm for this model |
| Beam quality | <1.2 | Confirm for this model | <1.5 |
Compare the MSL-R-349 with nearby single-frequency lasers across the wavelength range.
Choosing a laser
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