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Power stability, linewidth, beam quality

MDL-1850(FC)1850 nm infrared CW laser

1850 nm

MDL-1850(FC) is a 1850 nm CW laser. Used for measurement, communication, spectrum analysis. 1850 nm Infrared Diode Laser. Key specifications: output / average power 1~600 mW, operating mode CW, transverse mode Multimode. View specifications, datasheet and enquiry options from Precisometer.

Specifications

MDL-1850(FC)

16 specification rows

Output / average power1~600 mW
Beam / notes1850 nm Infrared Diode Laser
Operating modeCW
Transverse modeMultimode
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)1850±30
Output power (mW)1-700
Power stability (rms, 4 hours ± 3°C)<2%, <1%, <0.5%
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

MDL-1850(FC): Measurement benefits from a stable, focusable source. 1850 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (Multimode) informs waist size and propagation.

Communication

MDL-1850(FC): 1850 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

MDL-1850(FC): 1850 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 MDL-1850(FC) 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 MDL-1850(FC)

What cooling does the MDL-1850(FC) 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 MDL-1850(FC) 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 MDL-1850(FC) with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.

Selection parameterMDL-1850(FC) (current)FC-1850MLL-F-1850
Wavelength1850 nm1850 nm1850 nm
Optical power / pulse energy1~600 mW1~900 mW1~700 mW
Operating mode / pulse widthCWConfirm for this modelCW
Beam qualityMultimodeConfirm for this modelMultimode