Output Characteristics

Vanguard 355-2500 Vanguard 355-350 Vanguard 532-2000
Wavelength 355 nm 355 nm 532 nm
Power 2.5 W 350 mW 2 W
Repetition Rate 80 MHz ±2 MHz
Spatial Mode TEM00
M2 <1.2 <1.2 <1.3
Far Field Divergence, full angle <1 mrad
Beam Diameter (1/e²) 1.0 mm nominal 1.0 mm nominal 1.4 mm nominal
Beam Pointing Stability <25 µrad/°C
Beam Ellipticity <20% far field
Average Power Stability <2%
Amplitude Noise <1% rms, 10 Hz to 2 MHz
Polarization Ratio >100:1 vertical
Cold Turn-on Time (AC off to full power) <30 min
Cold Turn-on Time (AC off to full specs) <1 hr
Temperature Range 20-27°C
Laser Head Cooling Water cooled Air cooled


  1. Due to our continuous product improvement program, specifications are subject to change without notice.
  2. Vanguard is a Class IV - High-Power Laser, whose beam is, by definition, a safety and fire hazard. Take precautions to prevent exposure to direct and reflected beams. Diffuse as well as specular reflections can cause severe skin or eye damage.