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Power stability, linewidth, beam quality

MLL-U-671-SM671 nm red CW laser

671 nm

MLL-U-671-SM is a 671 nm CW laser. Used for flow cytometry, dna sequencing, medical imaging, collimation. Laser. Key specifications: output / average power 1~250 mW, operating mode CW, transverse mode TEM00 (single mode fiber output). View specifications, datasheet and enquiry options from Precisometer.

Specifications

MLL-U-671-SM

19 specification rows

Output / average power1~250 mW
Beam / notesLaser
Operating modeCW
Transverse modeTEM00 (single mode fiber output)
M2<1.1
Fiber numerical aperture0.10-0.15
Fiber typeSM fiber (PM fiber optional)
Noise of amplitude (rms, 20Hz-20MHz)<1%
Fiber connectorFC/APC
Fiber jacketPVC (black)
Fiber length1m
Polarization (optional)>50:1 after PM fiber
Warm-up time (minutes)<10
Operating temperature (°C)10-35
Power supply (100-240VAC)PSU-H-FDA
Expected lifetime (hours)>10000
Wavelength (nm)671±1
Output power (mW)1-250
<1.1

Application context

Why this design is used

Typical uses for this laser type, with the selection logic tied to the model record.

Flow cytometry

MLL-U-671-SM: 671 nm emission can be matched to the absorption or excitation band used in Flow cytometry. Power stability and beam pointing should be confirmed because both affect quantitative image or fluorescence intensity.

DNA sequencing

MLL-U-671-SM: 671 nm emission can be matched to the absorption or excitation band used in DNA sequencing. Power stability and beam pointing should be confirmed because both affect quantitative image or fluorescence intensity.

Medical imaging

MLL-U-671-SM: 671 nm emission can be matched to the absorption or excitation band used in Medical imaging. Power stability and beam pointing should be confirmed because both affect quantitative image or fluorescence intensity.

Collimation

MLL-U-671-SM: Collimation benefits from a stable, focusable source. 671 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (TEM00 (single mode fiber output)) informs waist size and propagation.

System integration

Integration and compatibility

Use these checks to connect MLL-U-671-SM to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.

Fiber delivery interface
Fiber type: SM fiber (PM fiber optional) · Fiber connector: FC/APC
Match the listed connector and fiber mode exactly; SMA905, FC/PC and FC/APC are not interchangeable, and a single-mode launch requires mode-field as well as numerical-aperture matching.
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 (single mode fiber output) · M2: <1.1
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-671-SM

How is the MLL-U-671-SM output delivered?

Fiber type: SM fiber (PM fiber optional) · Fiber connector: FC/APC. Match the listed connector and fiber mode exactly; SMA905, FC/PC and FC/APC are not interchangeable, and a single-mode launch requires mode-field as well as numerical-aperture matching.

What cooling does the MLL-U-671-SM 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-671-SM deliver?

Transverse mode: TEM00 (single mode fiber output) · M2: <1.1. 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.

Open laser selector

Model selection

Nearby series comparison

Compare MLL-U-671-SM with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.

Selection parameterMLL-U-671-SM (current)MLL-U-671MLL-FN-671
Wavelength671 nm671 nm671 nm
Optical power / pulse energy1~250 mW1~500 mW500~1000 mW
Operating mode / pulse widthCWCWCW
Beam qualityTEM00 (single mode fiber output)TEM00TEM00