Power stability, linewidth, beam quality
MRL-FN-656.5 is a 656.5 nm CW laser. High Stability Red Laser. Key specifications: output / average power 1~1000 mW, wavelength (nm) 656.5±1, operating mode CW. View specifications, datasheet and enquiry options from Precisometer.
Specifications
18 specification rows
| Output / average power | 1~1000 mW |
|---|---|
| Beam / notes | High Stability Red Laser |
| Wavelength (nm) | 656.5±1 |
| Operating mode | CW |
| Power stability (rms, 4 hours±3℃) | <2%, <1%, 0.5% |
| Transverse mode | TEM00 |
| M² | <1.2 |
| Beam diameter at the aperture (1/e2, mm) | <1.5 |
| Beam divergence, full angle (mrad) | <1.5 |
| Polarization Ratio | >100:1, Vertical (Horizontal Optional) |
| Warm-up time (minutes) | <5 |
| Pointing Stability(μrad) (over 2 hours after warm-up and ±3°C) | <50 |
| Pointing Stability Over Temperature(μrad/°C) | <8 |
| Beam height from base plate (mm) | 27.4 |
| Operating Temperature (°C) | 10-35 |
| Modulation optional | DC-1kHz, 1kHz-10kHz, 10kHz-30kHz optional; TTL and Analog optional |
| Power supply (100-240VAC) | PSU-H-FDA/ PSU-H-LED/ PSU-SR |
| Expected lifetime (hours) | >10000 |
Application context
Typical uses for this laser type, with the selection logic tied to the model record.
MRL-FN-656.5: 656.5 nm emission determines compatible optics, coatings and detectors for Optical instrumentation. The catalogued beam parameter (TEM00) helps predict how the source will focus and propagate through the instrument.
MRL-FN-656.5: Laboratory measurement benefits from a stable, focusable source. 656.5 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 MRL-FN-656.5 to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Operating Temperature (°C): 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: <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 MRL-FN-656.5 with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | MRL-FN-656.5 (current) | FC-656.5 | MRL-656.5(FC) |
|---|---|---|---|
| Wavelength | 656.5 nm | 656.5 nm | 656.5 nm |
| Optical power / pulse energy | 1~1000 mW | 1~360 mW | 1~1080 mW |
| Operating mode / pulse width | CW | CW | Confirm for this model |
| Beam quality | TEM00 | Confirm for this model | Confirm for this model |
Compare the MRL-FN-656.5 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