gem 561

The gem 561 laser offers up to 500 mW of yellow light in a near diffraction limited TEM00 beam with a M²<1.1. Designed for easy integration into OEM applications, the gem 561 has been extensively tested for robustness and stability.


Power50 mW - 500 mW
Wavelength561 nm
Spectral Bandwidth40 GHz
Coherence Length~7.5 mm
Power Stability<1.0% RMS
Noise<1.5% RMS
Noise Bandwidth10 Hz - 10 kHz
Pointing Stability<10 µrad/°C
Spatial ModeTEM00
Divergence<1 mrad
Beam Diameter1.0 mm ± 0.2 mm
Polarisation Ratio>100:1
Polarisation DirectionHorizontal
Beam Angle<1 mrad
Operating Temperature15 - 40°C
Weight0.75 kg
Umbilical Length1.5 m
Warmup Time<10 minutes
Laser ClassClass IV

Additional Information


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