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SLM, narrow linewidth, coherence

MSL-R-457457 nm blue narrow-linewidth single-frequency laser

457 nm

The MSL-R-457 is a 457 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-R-457

21 specification rows

Output / average power350~3500 mW
Spectral linewidth<5 MHz
M²<1.2
Operating modeCW
Transverse modeTEM00
Longitudinal modeSingle
Pointing stability over temperature (μrad/°C)<8
Warm-up time (minutes)<15
Cooled method (water cooled)WCH-580
Operating temperature (°C)20-30
Power supply (100-240VAC)PSU-W-FDA
Expected lifetime (hours)>10000
Wavelength (nm)457±1
Power stability (rms, 4 hours ±3°C)<3%, <2%, <1%
Noise of amplitude (rms, 20Hz-20MHz)<1%, <0.5%
Beam diameter at the aperture (1/e2, mm)<1.5
Beam divergence, full angle (mrad)<0.5
Polarization ratio>100:1, Horizontal (Vertical optional)
Pointing stability(μrad) (over 2 hours after warm-up and ±3°C)<50
Beam height from base plate (mm)62
Coherent length (m)>50

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-R-457 with the closest available models in the Single-Frequency Lasers family.

Selection parameterMSL-R-457 (current)MSL-R-457Single Longitudinal Mode Single Frequency
Wavelength457 nm457 nm457 nm
Optical power / pulse energy350~3500 mWWater cooled1-350 mW
Operating mode / pulse widthCWCW—
Beam quality<1.2<1.2—