Single beam interferometric angle measurement

Abstract : We present an application of a quadrature phase interferometer to the measurement of the angular position of a parallel laser beam with interferometric precision. In our experimental realization we reach a resolution of 6.8e-10 rad (1.4e-4 arcsec) for 1 kHz bandwidth in a 2e-2 rad (1 deg) range. This alternative to the optical lever technique features absolute calibration, independence of the sensitivity on the thermal drifts, and wide range of measurement at full accuracy.
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Contributor : Ludovic Bellon <>
Submitted on : Tuesday, October 16, 2007 - 9:27:45 AM
Last modification on : Thursday, April 19, 2018 - 2:54:03 PM
Long-term archiving on : Thursday, September 23, 2010 - 5:08:20 PM

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Pierdomenico Paolino, Ludovic Bellon. Single beam interferometric angle measurement. Optics Communications, Elsevier, 2007, pp.1-9. ⟨10.1016/j.optcom.2007.07.060⟩. ⟨ensl-00119346v3⟩

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