Power stability, linewidth, beam quality
PGL-V-H-690 is a 690 nm CW laser. Used for flow cytometry, dna sequencing, medical imaging, collimation. Laser. Key specifications: output / average power 1~1000 mW, operating mode CW, power stability(rms, over 4 hours) <5%, <3%, <1%. View specifications, datasheet and enquiry options from Precisometer.
Specifications
15 specification rows
| Wavelength | 690 nm |
|---|---|
| Output / average power | 1~1000 mW |
| Beam / notes | Laser |
| Operating mode | CW |
| Power stability(rms, over 4 hours) | <5%, <3%, <1% |
| Transverse mode | Multimode |
| Beam divergence, full angle (mrad) | <6 |
| Warm-up time | minutes / <10 |
| Expected lifetime (hours) | 10000 |
| Warranty (years) | 1 |
| Operating voltage(PSU-V-OEM) | 100-240VAC |
| Connection | 9 pin connector |
| Operating temperature | -10°C to 50°C |
| Storage temperature | -20°C to 80°C |
| Humidity | < 90%, non-condensing |
| Dimensions of laser head | 92(L)×40(W)×40(H)mm3 |
Application context
Typical uses for this laser type, with the selection logic tied to the model record.
PGL-V-H-690: 690 nm emission can be matched to the absorption or excitation band used in Flow cytometry. The stated stability or noise figure (<5%, <3%, <1%) helps keep measured intensity changes attributable to the sample rather than source drift.
PGL-V-H-690: 690 nm emission can be matched to the absorption or excitation band used in DNA sequencing. The stated stability or noise figure (<5%, <3%, <1%) helps keep measured intensity changes attributable to the sample rather than source drift.
PGL-V-H-690: 690 nm emission can be matched to the absorption or excitation band used in Medical imaging. The stated stability or noise figure (<5%, <3%, <1%) helps keep measured intensity changes attributable to the sample rather than source drift.
PGL-V-H-690: Collimation benefits from a stable, focusable source. 690 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (Multimode) informs waist size and propagation.
System integration
Use these checks to connect PGL-V-H-690 to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Operating temperature: -10°C to 50°C. Provide the stated cooling method and keep the laser-head base thermally coupled; temperature drift moves wavelength, output power and beam pointing.
Transverse mode: Multimode · Beam divergence, full angle (mrad): <6. 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.
Dimensions of laser head: 92(L)×40(W)×40(H)mm3. Verify the housing drawing and bolt length before designing a mount. A laser head rarely carries a table thread itself, so the adapter between it and an M6 or 1/4"-20 grid is part of the specification.
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 PGL-V-H-690 with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | PGL-V-H-690 (current) | FC-D-690 | MLL-III-690L |
|---|---|---|---|
| Wavelength | 690 nm | 690 nm | 690 nm |
| Optical power / pulse energy | 1~1000 mW | 1~450 mW | 1~250 mW |
| Operating mode / pulse width | CW | Confirm for this model | CW |
| Beam quality | Multimode | Confirm for this model | Near TEM00 |
Compare the PGL-V-H-690 with nearby cw 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
Optical trappingWhy wavelength is decided by photodamage, focal heating, and detector bandwidth rather than trapping force — and what laser noise costs you in piconewtons.
Open guide
Confocal microscopyConnect fluorophores, pinhole size, Airy units, spatial sampling, scan timing, modulation, and power after the fiber in one practical design workflow.
Open guide