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Power stability, linewidth, beam quality

MIL-W-40004000 nm infrared CW laser

4000 nm

MIL-W-4000 is a 4000 nm CW laser. Used for spectroscopy, remote sensing, medical. CW Mid-Infrared Laser. Key specifications: operating mode CW, output / average power 50~500 mW, wavelength deviation (nm) ±30. View specifications, datasheet and enquiry options from Precisometer.

Specifications

MIL-W-4000

13 specification rows

Operating modeCW
Output / average power50~500 mW
Beam / notesCW Mid-Infrared Laser
Wavelength deviation (nm)±30
Power stability (rms, 4 hours±3℃)<5%, <3%
Beam divergence, full angle (mrad)<11
Beam diameter at the aperture (1/e2,mm)<11
Beam height from base plate (mm)103
Warm-up time (minutes)<10
Cooled methodAir Cooled
Operating temperature (℃)15-35
Power supply (100-240VAC)RAD1PS
Expected lifetime (hours)>10000

Application context

Why this design is used

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

Spectroscopy

MIL-W-4000: 4000 nm emission sets the excitation and detector-band choice for Spectroscopy; linewidth and wavelength stability determine how cleanly weak spectral features can be separated from the laser line. The listed beam characteristic (<11) also controls focusing and collection geometry.

Remote sensing

MIL-W-4000: 4000 nm emission determines compatible optics, coatings and detectors for Remote sensing. The catalogued beam parameter (<11) helps predict how the source will focus and propagate through the instrument.

Medical

MIL-W-4000: 4000 nm emission determines compatible optics, coatings and detectors for Medical. The catalogued beam parameter (<11) helps predict how the source will focus and propagate through the instrument.

System integration

Integration and compatibility

Use these checks to connect MIL-W-4000 to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.

Thermal management
Cooled method: Air Cooled · Operating temperature (℃): 15-35
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
Beam divergence, full angle (mrad): <11 · Beam diameter at the aperture (1/e2,mm): <11
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-W-4000

What cooling does the MIL-W-4000 require?

Cooled method: Air Cooled · Operating temperature (℃): 15-35. 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-W-4000 deliver?

Beam divergence, full angle (mrad): <11 · Beam diameter at the aperture (1/e2,mm): <11. 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-W-4000 with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.

Selection parameterMIL-W-4000 (current)MDL-XN-4000TUN-W-2600~4410
Wavelength4000 nm4000 nm4000 nm
Optical power / pulse energy50~500 mW1~600 mW50~500 mW
Operating mode / pulse widthCWCWCW
Beam quality<11Near TEM00<11