SLM, narrow linewidth, coherence
MSL-III-785L is a 785 nm Single-Frequency laser. Used for raman spectroscopy, speckle interferometry, bio-instrumentation, metrology. Linewidth <100 MHz. Key specifications: output / average power 1~120 mW, operating mode CW, power stability (rms, 4 hours ± 3°c) <2%, <1%, <0.5%. View specifications, datasheet and enquiry options from Precisometer.
Specifications
12 specification rows
| Wavelength | 785 nm |
|---|---|
| Output / average power | 1~120 mW |
| Beam / notes | Linewidth <100 MHz |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <2%, <1%, <0.5% |
| Spectral line width (MHz) | <100, (<50 optional) |
| Noise of amplitude (rms, 20Hz-20MHz) | <1%, <0.5% |
| M2 | <1.5 |
| Beam divergence, full angle (mrad) | ~2.0 |
| Warm-up time (minutes) | <5 |
| Operating temperature (℃) | 10-35 |
| Power supply (100-240VAC) | PSU-III-FDA |
| Expected lifetime (hours) | >10000 |
Application context
Applications named on this model’s datasheet, expanded with the model’s optical specifications.
MSL-III-785L: 785 nm emission sets the excitation and detector-band choice for Raman spectroscopy; linewidth and wavelength stability determine how cleanly weak spectral features can be separated from the laser line. The listed beam characteristic (~2.0) also controls focusing and collection geometry.
MSL-III-785L: Speckle interferometry benefits from a stable, focusable source. 785 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (~2.0) informs waist size and propagation.
MSL-III-785L: 785 nm emission determines compatible optics, coatings and detectors for Bio-instrumentation. The catalogued beam parameter (~2.0) helps predict how the source will focus and propagate through the instrument.
MSL-III-785L: 785 nm emission determines compatible optics, coatings and detectors for Metrology. The catalogued beam parameter (~2.0) helps predict how the source will focus and propagate through the instrument.
System integration
Use these checks to connect MSL-III-785L to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
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.
M2: <1.5 · Beam divergence, full angle (mrad): ~2.0. 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.
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 MSL-III-785L with the closest available models in the Single-Frequency Lasers family. Confirm option-dependent values on the final configuration before ordering.
Compare the MSL-III-785L with nearby single-frequency lasers across the wavelength range.
Choosing a laser
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