The Keysight 5519B is used primarily in machine tool calibrator systems where the velocity of motion is slower. The laser head has a receiver built in. Uses AC power input.


The Keysight 5519B is a helium-neon (HeNe) laser that offers exceptional stability. The laser is a complete system with a built-in receiver and its own power supply that plugs directly into an AC power outlet.

This laser is a component of the Keysight 5530 Laser Calibration System. It may also be used in other applications where the velocity of motion to be measured is slower than for other applications.

Please contact us for custom requirements.


  • max velocity with linear optics: 1 m/s
  • reference frequency: 3.4 to 4.0 MHz
  • weight: 5.5 kg (12 lb)
  • clearance required for cabling: 10.16 cm (4 in) beyond back of unit

Laser Beam

  • diameter: 6 mm (0.25 in)
  • minimum output power: 180 uW

Electrical Power

  • 110 to 120 Vac, 48 to 66 Hz or 400 Hz
  • 220 to 240 Vac, 48 to 66 Hz
  • warm-up dissipation: 50 W
  • operating dissipation: 33 W


  • mean time between failures greater than 50,000 hours of operation, most reliable lasers

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