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SLM, narrow linewidth, coherence

MSL-FN-671671 nm red narrow-linewidth single-frequency laser

671 nm

The MSL-FN-671 is a 671 nm continuous-wave solid-state laser. Light is amplified in a solid gain medium inside an optical resonator. The resonator feeds light back through that medium to build the laser beam. The pump arrangement and cooling determine how energy is supplied and waste heat is removed. Single-longitudinal-mode operation selects one resonator frequency. Linewidth describes the spread around that frequency, while frequency drift describes how its center moves over time. This distinction matters when matching the source to a narrow resonance or an interferometer.

Specifications

MSL-FN-671

23 specification rows

Output / average power1~500 mW
Spectral linewidth<1 MHz
M²<1.2
Operating modeCW
Transverse modeTEM00
Longitudinal modeSingle
Warm-up time (minutes)<10
Pointing stability over temperature (urad/°C)<8
Frequency shift (MHz) (over ±2°C and 8hrs) (optional)<±200
Operating temperature (°C)10-35
Power supply (100-240VAC)PSU-H-FDA
Expected lifetime (hours)>10000
Wavelength (nm)671±1
Power stability (rms, 4 hours ±3°C)<3%, <2%, <1%
Coherent length (m)>50
Noise of amplitude (rms, 20Hz-20MHz)<1%, <0.5%
Beam diameter at the aperture (1/e2, mm)<2.0
Beam divergence, full angle (mrad)<1.2
Polarization ratio>100:1, Vertical (Horizontal optional)
Pointing stability (urad) (over 2 hours after warm-up and ±3°C)<50
Frequency shift with temp (MHz/°C) (optional)<200
Beam height from base plate (mm)27.4
Laser head consumption (W)15 (typical), <25 (40°C)

What do you need?

Tell us the output power, linewidth and beam delivery you need, and we'll reply with the matching configuration and lead time.

Model selection

Nearby series comparison

Compare MSL-FN-671 with the closest available models in the Single-Frequency Lasers family.

Selection parameterMSL-FN-671 (current)671MSL-W-671
Wavelength671 nm671 nm671 nm
Optical power / pulse energy1~500 mW1~50 mW500~2500 mW
Operating mode / pulse widthCW—CW
Beam quality<1.2<1.2<1.5