Power stability, linewidth, beam quality
UV-SF-389 is a 389 nm CW laser. Used for flow cytometry, dna sequencing, optical instrument, medical imaging. Laser. Key specifications: output / average power 1~40 mW, operating mode CW, transverse mode TEM00. View specifications, datasheet and enquiry options from Precisometer.
Specifications
16 specification rows
| Output / average power | 1~40 mW |
|---|---|
| Beam / notes | Laser |
| Operating mode | CW |
| Transverse mode | TEM00 |
| M2 | ~3.0 |
| Beam divergence, full angle (mrad) | <2.0 |
| Warm-up time (minutes) | <10 |
| Cooled method (Water Cooled) | WCH-580 |
| Power supply (100-240VAC) | PSU-SF |
| Expected lifetime (hours) | >10000 |
| Central wavelength (nm) | 389±1 |
| Output power (mW) | 1-40 |
| Power stability (rms, 4 hours±3℃) | <3%, <2%, (<1% optional@Water Cooled) |
| M² | ~3.0 |
| Beam diameter at the aperture (1/e2, mm) | ~3.0 |
| Beam height from base plate (mm) | 45@Air Cooled/ 61.5@Water Cooled |
Application context
Typical uses for this laser type, with the selection logic tied to the model record.
UV-SF-389: 389 nm emission can be matched to the absorption or excitation band used in Flow cytometry. The stated stability or noise figure (<3%, <2%, (<1% optional@Water Cooled)) helps keep measured intensity changes attributable to the sample rather than source drift.
UV-SF-389: 389 nm emission can be matched to the absorption or excitation band used in DNA sequencing. The stated stability or noise figure (<3%, <2%, (<1% optional@Water Cooled)) helps keep measured intensity changes attributable to the sample rather than source drift.
UV-SF-389: 389 nm emission determines compatible optics, coatings and detectors for Optical instrument. The catalogued beam parameter (TEM00) helps predict how the source will focus and propagate through the instrument.
UV-SF-389: 389 nm emission can be matched to the absorption or excitation band used in Medical imaging. The stated stability or noise figure (<3%, <2%, (<1% optional@Water Cooled)) helps keep measured intensity changes attributable to the sample rather than source drift.
System integration
Use these checks to connect UV-SF-389 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. 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: ~3.0. 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 UV-SF-389 with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | UV-SF-389 (current) | TUN-390.2~392 | UV-SF-385 |
|---|---|---|---|
| Wavelength | 389 nm | 390 nm | 385 nm |
| Optical power / pulse energy | 1~40 mW | 1~15 mW | 1~20 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | TEM00 | Near TEM00 | TEM00 |
Compare the UV-SF-389 with nearby cw lasers across the wavelength range.
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