Scientific research
TUN-918~941: 937 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.
SLM, narrow linewidth, coherence
TUN-918~941937 nm near-infrared tunable single-frequency laser
937 nmTUN-918~941 is a 937 nm Single-Frequency laser. Used for scientific research, teaching, holographic imaging, raman. Narrow Linewidth 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-918~941
21 specification rows
| Wavelength | 937 nm |
|---|---|
| Output / average power | 1~40 mW |
| Beam / notes | Narrow Linewidth 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) | 918-941 |
| 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) | >20 (70pm) |
| 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-918~941: 937 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-918~941: 937 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-918~941: 937 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-918~941 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-918~941
What cooling does the TUN-918~941 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-918~941 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-918~941 with the closest available models in the Single-Frequency Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | TUN-918~941 (current) | MLL-III-937L | MLL-III-937-SM |
|---|---|---|---|
| Wavelength | 937 nm | 937 nm | 937 nm |
| Optical power / pulse energy | 1~40 mW | 1~200 mW | 1-50 mW |
| Operating mode / pulse width | CW | CW | Confirm for this model |
| Beam quality | Near TEM00 | Near TEM00 | Confirm for this model |
Related single-frequency lasers
Compare the TUN-918~941 with nearby single-frequency lasers across the wavelength range.
