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Power stability, linewidth, beam quality

MIL-U-946-SU946 nm near-infrared CW laser

946 nm

MIL-U-946-SU is a 946 nm CW laser. Used for scientific experiments, optical instrumentation, optical sensing, measurement. Laser. Key specifications: output / average power 800~1500 mW, operating mode CW, power stability (rms, 4 hours, ±3°c) <3%, <2%. View specifications, datasheet and enquiry options from Precisometer.

Specifications

MIL-U-946-SU

19 specification rows

Output / average power800~1500 mW
Beam / notesLaser
Operating modeCW
Power stability (rms, 4 hours, ±3°C)<3%, <2%
Transverse modeTEM00
M2<1.5
Beam diameter at the aperture (1/e2, mm)~1.0
Warm-up time (minutes)<5
Operating temperature (°C)10-35
Power supply (100-240VAC)PSU-H-FDA/PSU-H-LED/PSU-SR
Expected lifetime (hours)>10000
Wavelength (nm)946±1
Output power (mW)800-1500
<1.5
Beam divergence (mrad)<1.5
Polarization ratio/
Pointing stability (μrad) (over 2 hours after warm-up and ±3°C)<50
Beam height from base plate (mm)27.4
Modulation optional/

Application context

Why this design is used

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

Scientific experiments

MIL-U-946-SU: 946 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.

Optical instrumentation

MIL-U-946-SU: 946 nm emission determines compatible optics, coatings and detectors for Optical instrumentation. The catalogued beam parameter (TEM00) helps predict how the source will focus and propagate through the instrument.

Optical sensing

MIL-U-946-SU: 946 nm emission determines compatible optics, coatings and detectors for Optical sensing. The catalogued beam parameter (TEM00) helps predict how the source will focus and propagate through the instrument.

Measurement

MIL-U-946-SU: Measurement benefits from a stable, focusable source. 946 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (TEM00) informs waist size and propagation.

System integration

Integration and compatibility

Use these checks to connect MIL-U-946-SU 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 · M2: <1.5
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 MIL-U-946-SU

What cooling does the MIL-U-946-SU 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 MIL-U-946-SU deliver?

Transverse mode: TEM00 · M2: <1.5. 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 MIL-U-946-SU with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.

Selection parameterMIL-U-946-SU (current)MLL-U-946-SUMLL-H-946
Wavelength946 nm946 nm946 nm
Optical power / pulse energy800~1500 mW1~300 mW300~800 mW
Operating mode / pulse widthCWCWCW
Beam qualityTEM00TEM00TEM00