Open AccessFiber reference misalignment induced error in cylindrical wave interferometry
Author(s) -
Ayshah S. Alatawi,
Patrick J. Reardon,
Fei Liu
Publication year - 2015
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.015405
Subject(s) - optics , fiber , interferometry , optical fiber , acoustics , materials science , physics , composite material
This paper presents an experimental study of fiber reference misalignment induced error in a cylindrical wave test. As with any reference surface, misalignment aberrations are introduced into the measurement when the fiber reference is not perfectly aligned. Given the unique and unusual 1-dimensional filtering properties of the fiber reference, an empirical test was necessary to determine what the actual misalignment sensitivities are. The experimental results and analysis show that the 1-D filtering of the fiber does not affect the misalignment sensitivities. Also, the misalignment sensitivities are smaller, by a factor of two, than values previously reported for cylindrical test misalignment sensitivities. The sensitivities presented in this paper can be used to correctly realign a misaligned fiber reference in the lab.