Power stability, linewidth, beam quality
TUN-779~791 is a 785 nm CW laser. Wavelength Tunable Infrared Laser. Key specifications: output / average power 1~10 mW, spectral linewidth <0.1 nm, operating mode CW. View specifications, datasheet and enquiry options from Precisometer.
Specifications
16 specification rows
| Wavelength | 785 nm |
|---|---|
| Output / average power | 1~10 mW |
| Spectral linewidth | <0.1 nm |
| Beam / notes | Wavelength Tunable Infrared Laser |
| Operating mode | CW |
| Power stability (rms, over 4 hours) | <1%, <2%, <3% |
| Transverse mode | Near TEM00 |
| Warm-up time (minutes) | <5 |
| Operating temperature (℃) | 20~30 |
| Parameters of customed power supply | TEC: 7~12kΩ |
| Expected lifetime (hours) | 10000 |
| Warranty | 1 year |
| Wavelength range of roughly tuning (nm) | 779~791 |
| Beam diameter at the aperture (1/e2,mm) | ~3.0 |
| Beam divergence, full angle (mrad) | <1.0 |
| Polarization ratio | >50:1 (>100:1, optional) Horizontal±5 degree |
| Beam height from base plate (mm) | 45.5 |
Application context
Typical uses for this laser type, with the selection logic tied to the model record.
TUN-779~791: 785 nm emission determines compatible optics, coatings and detectors for Optical instrumentation. The catalogued beam parameter (Near TEM00) helps predict how the source will focus and propagate through the instrument.
TUN-779~791: Laboratory measurement benefits from a stable, focusable source. 785 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (Near TEM00) informs waist size and propagation.
System integration
Use these checks to connect TUN-779~791 to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Operating temperature (℃): 20~30. Provide the stated cooling method and keep the laser-head base thermally coupled; temperature drift moves wavelength, output power and beam pointing.
Transverse mode: Near TEM00 · Beam diameter at the aperture (1/e2,mm): ~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.
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 TUN-779~791 with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | TUN-779~791 (current) | MDL-785(FC) | FC-785 |
|---|---|---|---|
| Wavelength | 785 nm | 785 nm | 785 nm |
| Optical power / pulse energy | 1~10 mW | 1~2000 mW | 1~3 W |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | Near TEM00 | Multimode | Confirm for this model |
Compare the TUN-779~791 with nearby cw lasers across the wavelength range.
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