The Keysight 10715A differential interferometer performs differential measurements between the supplied reference mirror and a measurement plane mirror. The 10715A differential interferometer minimizes the dead path because the entire optical path through the interferometer uses a common mode eliminating thermal drift in measurements. The resolution of the measurement is twice that of a linear or single-beam interferometer.
The 10715A differential interferometer includes three retroreflectors, a beam bender, and two quarter-wave plates.
The Keysight 10715A Option 001 is available for optical layouts that require the interferometer to turn the beam.
Learn more about laser interferometer position measurement systems.
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