Applied Optics · 1979 · 53 citations · 0 references
Natural SciencesChemistryPhysicsMetrologyOpticsSpectroscopyInterferometryLaser OpticsLaser PhysicsLaser SpectroscopyOptical MetrologyOptical SpectroscopyFringe AnalysisInterferometric MeasurementInterferometric MetrologyInterferometric SpectroscopyLaser Distance MeasurementLaser InterferometryLaser Metrology SystemsOptical Interferometry
This paper describes a CO(2) laser interferometer allowing absolute distance measurements using a set of CO(2) lines. The method relies on the so-called fractional fringe technique. First, we introduce some theoretical topics related to this application of CO(2) spectroscopy. The second part of the paper is a description of the instrument.