The Keysight 10717A is a precision wavelength tracker that optically compensates for environmental refractive index variations in laser interferometer systems. It actively monitors temperature, pressure, and humidity fluctuations to maintain measurement accuracy in demanding metrology applications. The unit integrates an optical reference cavity (etalon) and a Keysight 10715A Differential Interferometer, both factory pre-aligned and mounted on a common base plate for direct integration into single-axis measurement configurations.
Technical Specifications
• Application: Wavelength of light compensation
• Measurement Axis: Single axis
• Maximum Beam Size: 6 mm
• Weight: 1.7 kg (3 lb 12 oz)
• Reflector: Built-in
• Measurement Repeatability: ±0.14 parts per million (ppm)
• Typical System Accuracy (20 ±0.5°C environment with 10717A compensation): ±0.2 ppm repeatability
• Comparison to air sensor compensation: 1.5 ppm typical accuracy with 10751C/10751D vs. ±0.2 ppm with 10717A
– Key Features
• Pre-aligned optical reference cavity and differential interferometer assembly
• Mounted on common metal base plate—eliminates field alignment requirements
• Superior accuracy versus traditional environmental sensors such as the 10751C and 10751D Air Sensors
• Optical compensation method—directly tracks wavelength rather than inferring from environmental measurements
• Single-measurement-axis design—integrates into multi-axis interferometer systems
– Typical Applications
The 10717A corrects displacement values across measurement axes by compensating for environmental effects on air refractive index. Primary use cases include precision positioning metrology, displacement measurement systems, and multi-axis coordinate measurement where environmental stability cannot be guaranteed or controlled. Offers superior performance in applications demanding repeatability below 0.2 ppm.
– Compatibility & Integration
Designed for integration with Keysight laser interferometer positioning systems. Functions alongside interferometers and retroreflectors in multi-axis configurations. Factory pre-alignment eliminates integration delays and ensures optimal optical path matching upon installation.
