Ho:YAG laser pumping
MIL-W-1990: 1985 nm emission determines compatible optics, coatings and detectors for Ho:YAG laser pumping. The catalogued beam parameter (Near TEM00) helps predict how the source will focus and propagate through the instrument.
Power stability, linewidth, beam quality
MIL-W-19901985 nm infrared CW laser
1985 nmMIL-W-1990 is a 1985 nm CW laser. Used for ho:yag laser pumping, medical, scientific research. Laser. Key specifications: output / average power 1~11 W, wavelength (nm) 1990±3, operating mode CW. View specifications, datasheet and enquiry options from Precisometer.
Specifications
MIL-W-1990
16 specification rows
| Output / average power | 1~11 W |
|---|---|
| Beam / notes | Laser |
| Wavelength (nm) | 1990±3 |
| Operating mode | CW |
| Output power (W) | 1-11 |
| Power stability (rms, 4 hours±3℃) | <5%, <3% |
| Transverse mode | Near TEM00 |
| Beam divergence, full angle (mrad) | <8 |
| Beam diameter at the aperture (1/e2,mm) | <5 |
| Polarization ratio | >100:1 Vertical |
| Beam height from base plate (mm) | 98 |
| Warm-up time (minutes) | <10 |
| Cooled method | Air Cooled |
| Operating temperature (℃) | 15-35 |
| Power supply (100-240VAC) | PSU-W-LED or PUS-W-FDA |
| 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.
Medical
MIL-W-1990: 1985 nm emission determines compatible optics, coatings and detectors for Medical. The catalogued beam parameter (Near TEM00) helps predict how the source will focus and propagate through the instrument.
Scientific research
MIL-W-1990: 1985 nm emission determines compatible optics, coatings and detectors for Scientific research. The catalogued beam parameter (Near TEM00) helps predict how the source will focus and propagate through the instrument.
System integration
Integration and compatibility
Use these checks to connect MIL-W-1990 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
- Transverse mode: Near TEM00 · Beam divergence, full angle (mrad): <8
- 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-1990
What cooling does the MIL-W-1990 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-1990 deliver?
Transverse mode: Near TEM00 · Beam divergence, full angle (mrad): <8. 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.
Model selection
Nearby series comparison
Compare MIL-W-1990 with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | MIL-W-1990 (current) | MIL-N-1990 | MDL-H-2000 |
|---|---|---|---|
| Wavelength | 1985 nm | 1985 nm | 2000 nm |
| Optical power / pulse energy | 1~11 W | 1~2000 mW | 1~300 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | Near TEM00 | Near TEM00 | Multimode |
Related cw lasers
Compare the MIL-W-1990 with nearby cw lasers across the wavelength range.
