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Power stability, linewidth, beam quality

MLL-U-561561 nm yellow CW laser

561 nm

MLL-U-561 is a 561 nm CW laser. Used for scientific experiments, medical measurements, instrumentation, spectral analysis. Laser. Key specifications: output / average power 80~200 mW, operating mode CW, spectral line width (nm) <0.1, <0.003. View specifications, datasheet and enquiry options from Precisometer.

Specifications

MLL-U-561

16 specification rows

Output / average power80~200 mW
Beam / notesLaser
Operating modeCW
Spectral line width (nm)<0.1, <0.003
Transverse modeTEM00
Beam diameter at the aperture (1/e2, mm)<1.0
Beam divergence (mrad)<1.5
Polarization ratio>100:1, Vertical (Horizontal optional)
Warm-up time (minutes)<5
Pointing stability over temperature (μrad/°C)<8
Operating temperature (°C)10-35
Power supply (100-240VAC)PSU-H-FDA
Expected lifetime (hours)>10000
Wavelength (nm)561±1
Pointing stability (μrad) (over 2 hours after warm-up and ±3°C)<50
Beam height from base plate (mm)27.4

Application context

Why this design is used

Applications named on this model’s datasheet, expanded with the model’s optical specifications.

Scientific experiments

MLL-U-561: 561 nm emission determines compatible optics, coatings and detectors for Scientific experiments. The catalogued beam parameter (TEM00) helps predict how the source will focus and propagate through the instrument.

Medical measurements

MLL-U-561: Medical measurements benefits from a stable, focusable source. 561 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (TEM00) informs waist size and propagation.

Instrumentation

MLL-U-561: 561 nm emission determines compatible optics, coatings and detectors for Instrumentation. The catalogued beam parameter (TEM00) helps predict how the source will focus and propagate through the instrument.

Spectral analysis

MLL-U-561: 561 nm emission determines compatible optics, coatings and detectors for Spectral analysis. The catalogued beam parameter (TEM00) helps predict how the source will focus and propagate through the instrument.

System integration

Integration and compatibility

Use these checks to connect MLL-U-561 to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.

Thermal management
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.
Beam parameters at the output
Transverse mode: TEM00 · Beam diameter at the aperture (1/e2, mm): <1.0
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.

Technical FAQ

Integration questions for MLL-U-561

What cooling does the MLL-U-561 require?

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.

What beam does the MLL-U-561 deliver?

Transverse mode: TEM00 · Beam diameter at the aperture (1/e2, mm): <1.0. 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.

Need this configured?

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.

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Model selection

Nearby series comparison

Compare MLL-U-561 with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.

Selection parameterMLL-U-561 (current)MLL-XS-561MLL-S-561
Wavelength561 nm561 nm561 nm
Optical power / pulse energy80~200 mW1~80 mW1~80 mW
Operating mode / pulse widthCWCWCW
Beam qualityTEM00TEM00TEM00