SLM, narrow linewidth, coherence
729 is a 729 nm Single-Frequency laser. Used for optical microscope, photon imaging, physics experiment. M²: /; Features: Coherent length >30 m. Key specifications: output / average power 1~300 mW, spectral linewidth <10 MHz, optical noise <0.5%. View specifications, datasheet and enquiry options from Precisometer.
Specifications
5 specification rows
| Wavelength | 729 nm |
|---|---|
| Output / average power | 1~300 mW |
| Spectral linewidth | <10 MHz |
| Optical noise | <0.5% |
| Beam / notes | M²: /; Features: Coherent length >30 m |
| Coherence length | >30 m |
Application context
Applications named on a datasheet for this product line, interpreted against this model’s listed wavelength and beam data.
729: 729 nm emission can be matched to the absorption or excitation band used in Optical microscope. The stated stability or noise figure (<0.5%) helps keep measured intensity changes attributable to the sample rather than source drift.
729: 729 nm emission can be matched to the absorption or excitation band used in Photon imaging. The stated stability or noise figure (<0.5%) helps keep measured intensity changes attributable to the sample rather than source drift.
729: Physics experiment benefits from a stable, focusable source. 729 nm emission fixes the compatible coatings and detector response, while M², divergence and pointing stability should be confirmed for the intended beam path.
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 729 with the closest available models in the Single-Frequency Lasers family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | 729 (current) | MSL-Ti-CW-729 | MSL-T-729 |
|---|---|---|---|
| Wavelength | 729 nm | 729 nm | 729 nm |
| Optical power / pulse energy | 1~300 mW | 1~2000 mW | 1~300 mW |
| Operating mode / pulse width | Confirm for this model | CW | Confirm for this model |
| Beam quality | Confirm for this model | <4 | Confirm for this model |
Compare the 729 with nearby single-frequency 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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PhotonicsSingle-mode fiber does not preserve polarization. Pin the state, erase it with a scrambler, or maintain it in PM fiber — which one your measurement needs, and the response time and extinction ratio that decide it.
Open guide