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Power stability, linewidth, beam quality

TUN-628~637637 nm red tunable CW laser

637 nm

TUN-628~637 is a 637 nm CW laser. Used for scientific research, teaching, holographic imaging, raman. Key specifications: output / average power Wavelength tunable. View specifications, datasheet and enquiry options from Precisometer.

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Specifications

TUN-628~637

2 specification rows

Wavelength637 nm
Output / average powerWavelength tunable
Beam / notesSeries: TUN-628~637

Application context

Why this design is used

Applications named on this model’s datasheet, expanded with the model’s optical specifications.

Scientific research

TUN-628~637: 637 nm emission determines compatible optics, coatings and detectors for Scientific research. Beam quality, divergence and pointing stability should be checked against the experiment geometry.

Teaching

TUN-628~637: 637 nm emission determines compatible optics, coatings and detectors for Teaching. Beam quality, divergence and pointing stability should be checked against the experiment geometry.

Holographic imaging

TUN-628~637: 637 nm emission determines compatible optics, coatings and detectors for Holographic imaging. Beam quality, divergence and pointing stability should be checked against the experiment geometry.

Raman

TUN-628~637: 637 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.

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.

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Model selection

Nearby series comparison

Compare TUN-628~637 with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.

Selection parameterTUN-628~637 (current)Long Coherence LengthTUN-6 34~643
Wavelength637 nm637 nm637 nm
Optical power / pulse energyWavelength tunable1-50 mWWavelength tunable
Operating mode / pulse widthConfirm for this modelConfirm for this modelCW
Beam qualityConfirm for this modelConfirm for this modelNear TEM00

Related cw lasers

Compare the TUN-628~637 with nearby cw lasers across the wavelength range.

Choosing a laser

Guides that put this laser in context

Which specifications decide the experiment, and which ones cost money without changing the result.

All guides
Laser emission spectrum, intensity noise traces, and beam quality profiles illustrating the main laser specifications
Photonics
13 min Spec lab

Laser specifications decoded

Linewidth, 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.

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Low-noise laser head and controller of the type specified for optical trapping
Optical trapping
16 min 2 simulations

Choosing a laser for optical tweezers

Why wavelength is decided by photodamage, focal heating, and detector bandwidth rather than trapping force — and what laser noise costs you in piconewtons.

Open guide
Fluorescently labeled cells in a sharp confocal focal plane
Confocal microscopy
14 min Design lab

Designing a confocal fluorescence excitation system

Connect fluorophores, pinhole size, Airy units, spatial sampling, scan timing, modulation, and power after the fiber in one practical design workflow.

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