Single beam interferometric angle measurement

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. Thi...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2007-10
Main Authors: Paolino, Pierdomenico, Bellon, Ludovic
Format: Article
Language:English
Subjects:
Angular position
Interferometry
Laser beams
Position measurement
Rangefinding
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.0612100