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Power stability, linewidth, beam quality

MRL-U-721-SU721 nm red CW laser

721 nm

MRL-U-721-SU is a 721 nm CW laser. Used for collimation, laser medical treatment, scientific experiment, optical instrument. Laser. Key specifications: output / average power 1~800 mW, operating mode CW, power stability (rms, 4 hours±3℃) <2%, <1%, <0.5%. View specifications, datasheet and enquiry options from Precisometer.

Specifications

MRL-U-721-SU

19 specification rows

Output / average power1~800 mW
Beam / notesLaser
Operating modeCW
Power stability (rms, 4 hours±3℃)<2%, <1%, <0.5%
Transverse modeTEM00
M2<1.2
Beam diameter at the aperture (1/e2, mm)<1.0
Beam divergence, full angle (mrad)<1.5
Polarization ratio>100:1, Vertical (Horizontal optional)
Warm-up time (minutes)<5
Pointing stability after warm-up (mrad)<0.05
Operating Temperature (°C)10-35
Modulation optionalDC-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
Wavelength (nm)721±1
Output power (mW)1-800
<1.2
Beam height from base plate (mm)27.4

Application context

Why this design is used

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

Collimation

MRL-U-721-SU: Collimation benefits from a stable, focusable source. 721 nm emission fixes the compatible coatings and detector response, while the listed beam characteristic (TEM00) informs waist size and propagation.

Laser medical treatment

MRL-U-721-SU: 721 nm emission determines compatible optics, coatings and detectors for Laser medical treatment. The catalogued beam parameter (TEM00) helps predict how the source will focus and propagate through the instrument.

Scientific experiment

MRL-U-721-SU: 721 nm emission determines compatible optics, coatings and detectors for Scientific experiment. The catalogued beam parameter (TEM00) helps predict how the source will focus and propagate through the instrument.

Optical instrument

MRL-U-721-SU: 721 nm emission determines compatible optics, coatings and detectors for Optical instrument. The catalogued beam parameter (TEM00) helps predict how the source will focus and propagate through the instrument.

System integration

Integration and compatibility

Use these checks to connect MRL-U-721-SU to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.

Thermal management
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.
Beam parameters at the output
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.

Technical FAQ

Integration questions for MRL-U-721-SU

What cooling does the MRL-U-721-SU require?

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.

What beam does the MRL-U-721-SU deliver?

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.

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 MRL-U-721-SU with the closest available models in the CW Lasers family. Confirm option-dependent values on the final configuration before ordering.

Selection parameterMRL-U-721-SU (current)MSL-FN-721MSL-R-721
Wavelength721 nm721 nm721 nm
Optical power / pulse energy1~800 mW1~300 mW300~1000 mW
Operating mode / pulse widthCWCWCW
Beam qualityTEM00TEM00TEM00