SLM, narrow linewidth, coherence
MLL-H-444 is a 444 nm Single-Frequency laser. Used for medical imaging, flow cytometry, dna sequencing. Narrow Linewidth Violet Blue Laser. Key specifications: output / average power 1~3000 mW, operating mode CW, power stability (rms, 4 hours ± 3°c) <2%, <1%, <0.5%. View specifications, datasheet and enquiry options from Precisometer.
Specifications
17 specification rows
| Output / average power | 1~3000 mW |
|---|---|
| Beam / notes | Narrow Linewidth Violet Blue Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Transverse mode | Multimode |
| Noise of amplitude (rms, 20Hz-20MHz) | <1%, <0.5% |
| Beam divergence, full angle (mrad) | 1.4×0.2 |
| Warm-up time (minutes) | <5 |
| Cooled method | Air cooled |
| Operating temperature (°C) | 10-35 |
| Power supply (100-240VAC) | PSU-H-FDA/PSU-H-LED |
| Expected lifetime (hours) | >10000 |
| Central wavelength (nm) | 444±2 |
| Output power (mW) | 1-3000 |
| Beam diameter at the aperture (1/e2, mm) | ~2.7×2.7 |
| Beam height from base plate (mm) | 29 |
| Modulation option | DC-1kHz, 1kHz-10kHz, 10kHz-30kHz optional; TTL and Analog optional |
Application context
Applications named on this model’s datasheet, expanded with the model’s optical specifications.
MLL-H-444: 444 nm emission can be matched to the absorption or excitation band used in Medical imaging. The stated stability or noise figure (<2%, <1%, <0.5%) helps keep measured intensity changes attributable to the sample rather than source drift.
MLL-H-444: 444 nm emission can be matched to the absorption or excitation band used in Flow cytometry. The stated stability or noise figure (<2%, <1%, <0.5%) helps keep measured intensity changes attributable to the sample rather than source drift.
MLL-H-444: 444 nm emission can be matched to the absorption or excitation band used in DNA sequencing. The stated stability or noise figure (<2%, <1%, <0.5%) helps keep measured intensity changes attributable to the sample rather than source drift.
System integration
Use these checks to connect MLL-H-444 to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Cooled method: Air cooled · Operating temperature (°C): 10-35. Provide the stated cooling method and keep the laser-head base thermally coupled; temperature drift moves wavelength, output power and beam pointing.
Transverse mode: Multimode · Beam divergence, full angle (mrad): 1.4×0.2. 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 MLL-H-444 with the closest available models in the Single-Frequency Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | MLL-H-444 (current) | MDL-E-444 | TUN-443~445 |
|---|---|---|---|
| Wavelength | 444 nm | 444 nm | 444 nm |
| Optical power / pulse energy | 1~3000 mW | 1~50 mW | 1~400 mW |
| Operating mode / pulse width | CW | CW | Confirm for this model |
| Beam quality | Multimode | Multimode | Confirm for this model |
Compare the MLL-H-444 with nearby single-frequency lasers across the wavelength range.
Choosing a laser
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