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Power stability, linewidth, beam quality

MRL-FN-679679 nm red CW laser

679 nm

The MRL-FN-679 is a 679 nm continuous-wave diode-pumped solid-state laser. Laser diodes optically pump a solid gain medium inside a resonator. The pump supplies the energy; repeated passes through the gain medium amplify the laser light. The TTL and analog modulation options control different things: TTL gates the beam on and off, while analog control varies its intensity. Modulation bandwidth sets how quickly the source can follow a changing command.

Specifications

MRL-FN-679

18 specification rows

Output / average power1~500 mW
Beam / notesLaser
Operating modeCW
Transverse modeTEM00
Beam diameter at the aperture (1/e2, mm)<1.5
Polarization ratio>100:1, Vertical (Horizontal optional)
Warm-up time (minutes)<5
Pointing stability over temperature (μrad/°C)<8
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)679±1
Power stability (rms, 4 hours ±3°C)<3%, <2%, <1%
M²<1.5
Beam divergence, full angle (mrad)<1.5
Pointing Stability (μrad) (over 2 hours after warm-up and ±3°C)<50
Beam height from base plate (mm)27.4

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Model selection

Nearby series comparison

Compare MRL-FN-679 with the closest available models in the CW Lasers family.

Selection parameterMRL-FN-679 (current)MRL-FN-678MLL-III-680
Wavelength679 nm678 nm680 nm
Optical power / pulse energy1~500 mW1~100 mW1~1500 mW
Operating mode / pulse widthCWCWCW
Beam quality<1.5<1.5<3.0