Scientific research
TUN-822~837: 825 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.
Power stability, linewidth, beam quality
TUN-822~837825 nm near-infrared tunable CW laser
825 nmTUN-822~837 is a 825 nm CW laser. Used for scientific research, teaching, holographic imaging, raman. Tunable Wavelength Infrared Laser. Key specifications: output / average power 1~40 mW, operating mode CW, power stability (rms, 4 hours ± 3°c) <3%, <2%, <1%. View specifications, datasheet and enquiry options from Precisometer.
Specifications
TUN-822~837
21 specification rows
| Wavelength | 825 nm |
|---|---|
| Output / average power | 1~40 mW |
| Beam / notes | Tunable Wavelength Infrared Laser |
| Operating mode | CW |
| Power stability (rms, 4 hours ± 3°C) | <3%, <2%, <1% |
| Transverse mode | Near TEM00 |
| Beam divergence, full angle (mrad) | <1.0 |
| Warm-up time (minutes) | <5 |
| Operating temperature (℃) | 20-30 |
| Power supply (100-240VAC) | PSU-TUN |
| Parameters of customed power supply | TEC: 7-12kΩ |
| Expected lifetime (hours) | >10000 |
| Wavelength range of roughly tuning (nm) | 822-837 |
| Output power (mW) | 1-40 |
| Spectral line width (nm) | <0.1 |
| Frequency shift (pm) (over ±2°C and 1hrs) | <10 |
| Coarse tuning accuracy (nm) | ~0.1 |
| Fine tuning range (GHz) | >30 (50pm) |
| Fine tuning accuracy (nm) | 0.001 |
| Beam diameter at the aperture (1/e2, mm) | ~3.0 |
| Polarization ratio | >50:1, (>100:1 optional) Horizontal±5 degree |
| Beam height from base plate (mm) | 40 |
Application context
Why this design is used
Applications named on this model’s datasheet, expanded with the model’s optical specifications.
Teaching
TUN-822~837: 825 nm emission determines compatible optics, coatings and detectors for Teaching. The catalogued beam parameter (Near TEM00) helps predict how the source will focus and propagate through the instrument.
Holographic imaging
TUN-822~837: 825 nm emission determines compatible optics, coatings and detectors for Holographic imaging. The catalogued beam parameter (Near TEM00) helps predict how the source will focus and propagate through the instrument.
Raman
TUN-822~837: 825 nm emission sets the excitation and detector-band choice for Raman; linewidth and wavelength stability determine how cleanly weak spectral features can be separated from the laser line. The listed beam characteristic (Near TEM00) also controls focusing and collection geometry.
System integration
Integration and compatibility
Use these checks to connect TUN-822~837 to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
- Thermal management
- 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.
- Beam parameters at the output
- Transverse mode: Near TEM00 · Beam divergence, full angle (mrad): <1.0
- 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.
Technical FAQ
Integration questions for TUN-822~837
What cooling does the TUN-822~837 require?
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.
What beam does the TUN-822~837 deliver?
Transverse mode: Near TEM00 · Beam divergence, full angle (mrad): <1.0. 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.
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 TUN-822~837 with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.
Related cw lasers
Compare the TUN-822~837 with nearby cw lasers across the wavelength range.
