Laser projection
MDL-HD-665: 665 nm emission determines compatible optics, coatings and detectors for Laser projection. The catalogued beam parameter (Multimode) helps predict how the source will focus and propagate through the instrument.
Power stability, linewidth, beam quality
MDL-HD-665 is a 665 nm CW laser. Used for laser projection, laser shows, biomedical applications, holography. Laser. Key specifications: output / average power 1.5~3 W, operating mode CW, power stability (rms, 4 hours ± 3°c) <2%, <1%, <0.5%. View specifications, datasheet and enquiry options from Precisometer.
Specifications
16 specification rows
| Output / average power | 1.5~3 W |
|---|---|
| Beam / notes | Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Transverse mode | Multimode |
| Polarization direction | Horizontal+ Vertical |
| Beam divergence, full angle (mrad) | ~2.5×2.5 |
| Warm-up time (minutes) | <5 |
| Operating temperature (℃) | 25±3 |
| Power supply (100-240VAC) | PSU-N-FDA/PSU-N-LED |
| Expected lifetime (hours) | >10000 |
| Central wavelength (nm) | 665±5 |
| Output power (mW) | 1500-3000 |
| Beam diameter at the aperture (mm) | ~6.7×7.2 |
| Beam height from base plate (mm) | 25 |
| Modulation option | DC-1kHz, 1kHz-10kHz, 10kHz-30kHz optional; TTL and Analog optional |
Application context
Applications named on this model’s datasheet, expanded with the model’s optical specifications.
MDL-HD-665: 665 nm emission determines compatible optics, coatings and detectors for Laser projection. The catalogued beam parameter (Multimode) helps predict how the source will focus and propagate through the instrument.
MDL-HD-665: 665 nm emission determines compatible optics, coatings and detectors for Laser shows. The catalogued beam parameter (Multimode) helps predict how the source will focus and propagate through the instrument.
MDL-HD-665: 665 nm emission determines compatible optics, coatings and detectors for Biomedical applications. The catalogued beam parameter (Multimode) helps predict how the source will focus and propagate through the instrument.
MDL-HD-665: 665 nm emission determines compatible optics, coatings and detectors for Holography. The catalogued beam parameter (Multimode) helps predict how the source will focus and propagate through the instrument.
System integration
Use these checks to connect MDL-HD-665 to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Operating temperature (℃): 25±3. Provide the stated cooling method and keep the laser-head base thermally coupled; temperature drift moves wavelength, output power and beam pointing.
Transverse mode: Multimode · Polarization direction: Horizontal+ Vertical. 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.
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
Compare MDL-HD-665 with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | MDL-HD-665 (current) | MLL-III-665 | MLL-H-665 |
|---|---|---|---|
| Wavelength | 665 nm | 665 nm | 665 nm |
| Optical power / pulse energy | 1.5~3 W | 1~800 mW | 800~2000 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | Multimode | <3.0 | Multimode |
Compare the MDL-HD-665 with nearby cw lasers across the wavelength range.
Choosing a laser
Which specifications decide the experiment, and which ones cost money without changing the result.
PhotonicsLinewidth, spectral width, RIN, M², and coherence length answer five different questions. Translate each into the units your experiment is designed in — and learn which ones not to pay for.
Open guide
Optical trappingWhy wavelength is decided by photodamage, focal heating, and detector bandwidth rather than trapping force — and what laser noise costs you in piconewtons.
Open guide
Confocal microscopyConnect fluorophores, pinhole size, Airy units, spatial sampling, scan timing, modulation, and power after the fiber in one practical design workflow.
Open guide