Power stability, linewidth, beam quality
MLL-U-561-SM is a 561 nm CW laser. Used for scientific experiments, collimation, laser medical treatment, scientific experiment. Laser. Key specifications: output / average power 1~40 mW, operating mode CW, transverse mode TEM00 (single mode fiber output). View specifications, datasheet and enquiry options from Precisometer.
Specifications
19 specification rows
| Output / average power | 1~40 mW |
|---|---|
| Beam / notes | Laser |
| Operating mode | CW |
| Transverse mode | TEM00 (single mode fiber output) |
| M2 | <1.1 |
| Fiber numerical aperture | 0.10-0.15 |
| Fiber type | SM fiber (PM fiber optional) |
| Noise of amplitude (rms, 20Hz-20MHz) | <1% |
| Fiber connector | FC/APC |
| Fiber jacket | PVC (black) |
| Fiber length | 1m |
| Polarization (optional) | >50:1 after PM fiber |
| Warm-up time (minutes) | <10 |
| Operating temperature (°C) | 10-35 |
| Power supply (100-240VAC) | PSU-H-FDA |
| Expected lifetime (hours) | >10000 |
| Wavelength (nm) | 561±1 |
| Output power (mW) | 1-40 |
| M² | <1.1 |
Application context
Typical uses for this laser type, with the selection logic tied to the model record.
MLL-U-561-SM: 561 nm emission determines compatible optics, coatings and detectors for Scientific experiments. The catalogued beam parameter (TEM00 (single mode fiber output)) helps predict how the source will focus and propagate through the instrument.
MLL-U-561-SM: Collimation benefits from a stable, focusable source. 561 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (TEM00 (single mode fiber output)) informs waist size and propagation.
MLL-U-561-SM: 561 nm emission determines compatible optics, coatings and detectors for Laser medical treatment. The catalogued beam parameter (TEM00 (single mode fiber output)) helps predict how the source will focus and propagate through the instrument.
MLL-U-561-SM: 561 nm emission determines compatible optics, coatings and detectors for Scientific experiment. The catalogued beam parameter (TEM00 (single mode fiber output)) helps predict how the source will focus and propagate through the instrument.
System integration
Use these checks to connect MLL-U-561-SM to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Fiber type: SM fiber (PM fiber optional) · Fiber connector: FC/APC. Match the listed connector and fiber mode exactly; SMA905, FC/PC and FC/APC are not interchangeable, and a single-mode launch requires mode-field as well as numerical-aperture matching.
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 (single mode fiber output) · M2: <1.1. 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 MLL-U-561-SM with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | MLL-U-561-SM (current) | MLL-XS-561 | MLL-S-561 |
|---|---|---|---|
| Wavelength | 561 nm | 561 nm | 561 nm |
| Optical power / pulse energy | 1~40 mW | 1~80 mW | 1~80 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | TEM00 (single mode fiber output) | TEM00 | TEM00 |
Compare the MLL-U-561-SM 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.
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Optical trappingWhy wavelength is decided by photodamage, focal heating, and detector bandwidth rather than trapping force — and what laser noise costs you in piconewtons.
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Confocal microscopyConnect fluorophores, pinhole size, Airy units, spatial sampling, scan timing, modulation, and power after the fiber in one practical design workflow.
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