Pulse energy, repetition rate, pulse width
2940 is a 2940 nm Pulsed laser. Used for optical microscope, photon imaging, physics experiment. Rep. rate (Hz): 2 -5; Cooled method: Water cooled. Key specifications: pulse energy 100-200 mJ, repetition rate 2-5 Hz, operating mode Pulsed. View specifications, datasheet and enquiry options from Precisometer.
Specifications
18 specification rows
| Wavelength | 2940 nm |
|---|---|
| Pulse energy | 100-200 mJ |
| Repetition rate | 2-5 Hz |
| Beam / notes | Rep. rate (Hz): 2-5; Cooled method: Water cooled |
| Operating mode | Pulsed |
| Average power (mW) 1 | 1-50 |
| Ave power stability (rms, 4 hours±3℃) | <2%, <1% |
| pulse | duration, / high |
| Warm-up time (minutes) | <10 |
| Transverse mode | TEM00 |
| M2 factor | <1.2 |
| Polarization ratio | >100:1 Vertical |
| Cooled method | Air cooled |
| Operating temperature (℃) | 10-35 |
| Power supply (100-240VAC) | 12V/6.67A |
| Expected lifetime (hours) | >10000 |
| Frequency doubler | LASER HEAD (780) / POWER SUPPLY |
| Pulse width | 0.9 ms |
| Cooling | Water cooled |
Application context
Applications named on this model’s datasheet, expanded with the model’s optical specifications.
2940: 2940 nm emission can be matched to the absorption or excitation band used in Optical microscope. The stated stability or noise figure (<2%, <1%) helps keep measured intensity changes attributable to the sample rather than source drift.
2940: 2940 nm emission can be matched to the absorption or excitation band used in Photon imaging. The stated stability or noise figure (<2%, <1%) helps keep measured intensity changes attributable to the sample rather than source drift.
2940: Physics experiment benefits from a stable, focusable source. 2940 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (TEM00) informs waist size and propagation.
System integration
Use these checks to connect 2940 to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Cooled method: Air cooled · 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.
Transverse mode: TEM00 · M2 factor: <1.2. 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 2940 with the closest available models in the Pulsed Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | 2940 (current) | LPS-2940-S | MIL-PS-2910 |
|---|---|---|---|
| Wavelength | 2940 nm | 2940 nm | 2910 nm |
| Optical power / pulse energy | 100-200 mJ | 100-200 mJ | 1~2000 mW |
| Operating mode / pulse width | 2-5 Hz | 2-5 Hz | CW |
| Beam quality | TEM00 | Confirm for this model | <11 |
Compare the 2940 with nearby pulsed 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
Photoacoustic imagingConnect optical absorption to wavelength, pulse fluence, stress confinement, acoustic bandwidth, repetition rate, and synchronization at the sample.
Open guide
Ultrafast spectroscopyDesign the pump, probe, delay line, monochromator, visible or SWIR camera, synchronization, and transient-signal budget as one experiment.
Open guide