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Power stability, linewidth, beam quality

MLL-F-975975 nm near-infrared CW laser

975 nm

MLL-F-975 is a 975 nm CW laser. Used for measurement, communication, spectrum analysis. Low Noise Infrared Laser ��. Key specifications: output / average power 5~8 W, operating mode CW, power stability (rms, 4 hours ± 3°c) <2%, <1%, <0.5%. View specifications, datasheet and enquiry options from Precisometer.

Specifications

MLL-F-975

17 specification rows

Output / average power5~8 W
Beam / notesLow Noise Infrared Laser ��
Operating modeCW
Power stability (rms, 4 hours ± 3°C)<2%, <1%, <0.5%
Transverse modeMultimode
Noise of amplitude (rms, 20Hz-20MHz)<1%, <0.5%
Beam divergence, full angle (mrad)<3.0
Warm-up time (minutes)<5
Cooled methodAir cooled
Operating temperature (℃)10-35
Power supply (100-240VAC)PSU-H-FDA/PSU-H-LED
Expected lifetime (hours)>10000
Central wavelength (nm)975±10
Output power (W)5-8
Beam diameter at the aperture (mm)~5×8
Beam height from base plate (mm)45
Modulation optionDC-1kHz, 1kHz-10kHz, 10kHz-30kHz optional; TTL and Analog optional

Application context

Why this design is used

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

Measurement

MLL-F-975: Measurement benefits from a stable, focusable source. 975 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (Multimode) informs waist size and propagation.

Communication

MLL-F-975: 975 nm emission must sit inside the fiber-component passband used for Communication; connector polish, fiber mode, linewidth and back-reflection tolerance should be specified as one optical interface.

Spectrum analysis

MLL-F-975: 975 nm emission sets the excitation and detector-band choice for Spectrum analysis; linewidth and wavelength stability determine how cleanly weak spectral features can be separated from the laser line. The listed beam characteristic (Multimode) also controls focusing and collection geometry.

System integration

Integration and compatibility

Use these checks to connect MLL-F-975 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 (℃): 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: Multimode · Beam divergence, full angle (mrad): <3.0
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-F-975

What cooling does the MLL-F-975 require?

Cooled method: Air cooled · Operating temperature (℃): 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-F-975 deliver?

Transverse mode: Multimode · Beam divergence, full angle (mrad): <3.0. 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-F-975 with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.

Selection parameterMLL-F-975 (current)TEM-LN-975MLL-III-975L
Wavelength975 nm975 nm975 nm
Optical power / pulse energy5~8 W1~1000 mW1~200 mW
Operating mode / pulse widthCWCWCW
Beam qualityMultimode<1.5<1.0