This paper deals with the impact of wavefront errors, due to the optical aberrations of a two-beam interferometer, on the period of the travelling fringe observed by integrating the interference pattern. A Monte Carlo simulation of the interferometer operation showed that the fringe-period estimate is unbiased if evaluated on the basis of the angular spectrum of the beam entering the interferometer, but the wavefront errors increase the uncertainty.
Wavefront errors in a two-beam interferometer / Mana, G; Massa, E; Sasso, C. P.. - In: METROLOGIA. - ISSN 0026-1394. - 55:4(2018), pp. 535-540. [10.1088/1681-7575/aacae6]
Wavefront errors in a two-beam interferometer
Mana, G
;Massa, E;Sasso, C. P.
2018
Abstract
This paper deals with the impact of wavefront errors, due to the optical aberrations of a two-beam interferometer, on the period of the travelling fringe observed by integrating the interference pattern. A Monte Carlo simulation of the interferometer operation showed that the fringe-period estimate is unbiased if evaluated on the basis of the angular spectrum of the beam entering the interferometer, but the wavefront errors increase the uncertainty.File in questo prodotto:
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