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Power stability, linewidth, beam quality

MLL-III-975L975 nm near-infrared CW laser

975 nm

MLL-III-975L is a 975 nm CW laser. Used for medical imaging, flow cytometry, dna sequencing. Low Noise Infrared Laser ��. Key specifications: output / average power 1~200 mW, operating mode CW, power stability (rms, 4 hours ± 3°c) <2%, <1%, <0.5%. View specifications, datasheet and enquiry options from Precisometer.

Specifications

MLL-III-975L

19 specification rows

Output / average power1~200 mW
Beam / notesLow Noise Infrared Laser ��
Operating modeCW
Power stability (rms, 4 hours ± 3°C)<2%, <1%, <0.5%
Noise of amplitude (rms, 20Hz-20MHz)<1%, <0.5%
M2<1.5
Beam divergence, full angle (mrad)<1.0
Warm-up time (minutes)<5
Cooled methodConduction
Operating temperature (°C)10-35
Power supply (100-240VAC)PSU-III-FDA/PSU-III-LED/PSU-A-D/PSU-III-OEM
Expected lifetime (hours)>10000
Central wavelength (nm)975±10
Output power (mW)1-200
Transverse modeNear TEM00
<1.5
Beam diameter at the aperture (1/e2, mm)~3.5
Beam height from base plate (mm)24.8
Modulation optionDC-1kHz, 1kHz-10kHz, 10kHz-30kHz, 30kHz-100kHz 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.

Medical imaging

MLL-III-975L: 975 nm emission can be matched to the absorption or excitation band used in Medical imaging. The stated stability or noise figure (<2%, <1%, <0.5%) helps keep measured intensity changes attributable to the sample rather than source drift.

Flow cytometry

MLL-III-975L: 975 nm emission can be matched to the absorption or excitation band used in Flow cytometry. The stated stability or noise figure (<2%, <1%, <0.5%) helps keep measured intensity changes attributable to the sample rather than source drift.

DNA sequencing

MLL-III-975L: 975 nm emission can be matched to the absorption or excitation band used in DNA sequencing. The stated stability or noise figure (<2%, <1%, <0.5%) helps keep measured intensity changes attributable to the sample rather than source drift.

System integration

Integration and compatibility

Use these checks to connect MLL-III-975L to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.

Thermal management
Cooled method: Conduction · 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
M2: <1.5 · Beam divergence, full angle (mrad): <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-III-975L

What cooling does the MLL-III-975L require?

Cooled method: Conduction · 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-III-975L deliver?

M2: <1.5 · Beam divergence, full angle (mrad): <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-III-975L with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.

Selection parameterMLL-III-975L (current)TEM-LN-975MLL-III-975
Wavelength975 nm975 nm975 nm
Optical power / pulse energy1~200 mW1~1000 mW1~2500 mW
Operating mode / pulse widthCWCWCW
Beam quality<1.0<1.5Multimode