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CW DPSS Green Lasers

Wavelengths

523 nm， 527 nm， 542 nm

Laser version

SLM version

Basic version

Output power (mW)

10， 5

400， 200， 100， 10， 5; For 542nm: 75， 50， 25， 10

Output noise， rms

< 0.5% (10 Hz - 20 MHz)

2% (0 -10 kHz)， >10% at 300 kHz

Longitudinal mode

Single

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Linewidth

< 10^-5 nm

0.2 nm

Coherence length

> 300 m

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Transverse mode

TEMoo， M²>1.1

Beam diameter (1/e2)

0.2 mm

Beam divergence， full angle

4 mrad (can be reduced with a beam expander)

Power stability， rms

< 2% over 8 hours; Ultra-stable options: 0.5% or 0.25% over 24 hours

Beam pointing stability

< 0.02 mrad at constant temperature

Polarization

Linear; Ratio 50:1; > 100:1 or >300:1 options available