Laser World of Photonics, Munich, Germany


Booth B2.203 June 26-29th 2017





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G4 Series


  • Overview
  • Features
  • Specification
  • Images
  • Drawings
  • Documentation

G4 LaserThe G4 series lasers are compact and robust. They provide high end specifications giving a green laser output at 532nm which has superior beam quality and low noise. These single longitudinal mode systems have coherence lengths in excess of 50 metres and line widths < 0.2cm-1. These parameters enable the G4 lasers to operate very effectively in applications that require precision, such as spectroscopy, interferometry and holography.

  • Compact module utilising surface mount technology
  • Manual safety shutter
  • Fixed output power
  • Integral heatsink or heat spreader plate
  • User interface (interlock, on/off keyswitch etc.)
  • RS232 controllable
  • Active current limit
  • Active optical power limit (limit cannot be exceeded)
  • Current or optical power feedback modes
  • Auto power up sequence: warmup, current mode, constant power mode
  • Laser diode protection circuitry
  • Monitor following parameters:
    • Diode current limit, diode current setpoint, actual diode current
    • Power limit, power setpoint, actual power
    • Diode & chipset temperature setpoint, actual temperature
  • Diode on-time LCD hour counter
  • Heatsink overtemp sensor > 50°C
  • Laser-head overtemp sensor > 39°C
  • Status & Diagnostic LED cluster
  • Designed and manufactured in the U.K.
Model G4-60 G4-100 G4-150 G4-200 G4-250
Power 60mW 100mW 150mW 200mW 250mW
Wavelength 532nm
Spatial Mode TEM00 M2 < 1.1
Longitudinal Mode Single Longitudinal Mode (SLM)
Noise < 0.5% RMS (typ 0.2%)
Beam Divergence < 1mRad
Polarisation >100:1 Vertical

G4 Laser Head G4 Power Supply

G4 Datasheet G4 User Manual PSU LED Cluster