The Keysight 5519B is a two-frequency Helium-Neon laser head engineered for precision displacement measurement and calibration in machine tool, CMM, and linear metrology applications. This continuous-wave HeNe laser delivers stable, accurate output across thermal cycles and operational lifetime by employing dual-frequency technique to suppress beam intensity fluctuation errors. The 5519B integrates into the Keysight 5530 Laser Calibration System and Agilent 5529A/55292A Dynamic Calibrator platforms, providing Class 2 laser output with exceptional wavelength stability and repeatability.
– Technical Specifications
• Laser Type: Helium-Neon (HeNe), continuous, two-frequency
• Wavelength: 632.9913540 nm (vacuum, nominal)
• Wavelength Accuracy: ±0.1 ppm (standard); ±0.02 ppm (MIL-STD 45662 calibrated)
• Wavelength Stability: ±0.002 ppm over 1 hour; ±0.02 ppm over lifetime
• Output Power: 180 µW to 1 mW
• Beam Diameter: 6 mm (0.24 in)
• Reference Frequency Output: 3.4 MHz to 4.0 MHz
• Laser Classification: Class 2 (21 CFR 1040.10/1040.11, IEC 60825-1:2007)
• Maximum Axis Velocity: 1 m/s (linear optics); 0.5 m/s (plane mirror); 0.25 m/s (high-resolution plane mirror)
– Electrical & Environmental
• Power: 100–240 VAC, 50/60 Hz; alternatives available at 110–120 VAC or 220–240 VAC (48–66 Hz, 400 Hz)
• Warm-up Time: <10 minutes
• Operating Power Dissipation: 23 W (operation); 33 W (warm-up: 50 W)
• Operating Temperature: 0 to 40 °C
• Weight: 5.5 kg (12 lb)
• Clearance Required: 10.16 cm (4 in) beyond rear for cabling
– Key Features
• Two-frequency laser architecture minimizes systematic errors from intensity fluctuations
• Exceptional wavelength stability—±0.002 ppm short-term enables sub-micron repeatability
• Low thermal drift enables extended calibration intervals in production environments
• Class 2 laser safety classification for personnel-proximate industrial use
– Typical Applications
• Machine tool accuracy verification and periodic recalibration
• Coordinate measuring machine (CMM) performance validation
• Linear displacement and position measurement systems
• Precision optical calibration in manufacturing metrology
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