Measurement
MDL-1900(FC): Measurement benefits from a stable, focusable source. 1900 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (Multimode) informs waist size and propagation.
Power stability, linewidth, beam quality
MDL-1900(FC)1900 nm infrared CW laser
1900 nmMDL-1900(FC) is a 1900 nm CW laser. Used for measurement, communication, spectrum analysis. 1900 nm Infrared Diode Laser. Key specifications: output / average power 1~400 mW, operating mode CW, power stability (rms, over 4 hours) <3%, <2%, <1%. View specifications, datasheet and enquiry options from Precisometer.
Specifications
MDL-1900(FC)
16 specification rows
| Output / average power | 1~400 mW |
|---|---|
| Beam / notes | 1900 nm Infrared Diode Laser |
| Operating mode | CW |
| Power stability (rms, over 4 hours) | <3%, <2%, <1% |
| Transverse mode | Multimode |
| Beam divergence, full angle (mrad) | <3. 0 |
| Warm-up time (minutes) | <5 |
| Operating temperature (℃) | 10~35 |
| Power supply (100-240VAC) | PSU-H-LED / PSU-H-FDA |
| TTL / Analog modulation | TTL or Analog with 1Hz-1kHz 1kHz-10kHz, 10kHz-30kHz optional |
| Expected lifetime (hours) | 10000 |
| Warranty | 1 year |
| Central wavelength (nm) | 1900±20 |
| Output power (mW) | >1, 50, 100, …, 500 |
| Dimensions of beam at the aperture (mm) | ~5×8 |
| Beam height from base plate (mm) | 29 |
Application context
Why this design is used
Applications named on this model’s datasheet, expanded with the model’s optical specifications.
Communication
MDL-1900(FC): 1900 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-1900(FC): 1900 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-1900(FC) to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
- Thermal management
- 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.
- Mechanical envelope
- Dimensions of beam at the aperture (mm): ~5×8
- Verify the housing drawing and bolt length before designing a mount. A laser head rarely carries a table thread itself, so the adapter between it and an M6 or 1/4"-20 grid is part of the specification.
Technical FAQ
Integration questions for MDL-1900(FC)
What cooling does the MDL-1900(FC) require?
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-1900(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.
How is the MDL-1900(FC) mounted?
Dimensions of beam at the aperture (mm): ~5×8. Verify the housing drawing and bolt length before designing a mount. A laser head rarely carries a table thread itself, so the adapter between it and an M6 or 1/4"-20 grid is part of the specification.
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.
Model selection
Nearby series comparison
Compare MDL-1900(FC) with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | MDL-1900(FC) (current) | FC-1900 | MDL-H-1900 |
|---|---|---|---|
| Wavelength | 1900 nm | 1900 nm | 1900 nm |
| Optical power / pulse energy | 1~400 mW | 1~10 W | 1~500 mW |
| Operating mode / pulse width | CW | Confirm for this model | CW |
| Beam quality | Multimode | Confirm for this model | Multimode |
Related cw lasers
Compare the MDL-1900(FC) with nearby cw lasers across the wavelength range.
