A HETERODYNE INTERFEROMETER USING AN ELECTROOPTIC MODULATOR FOR MEASURING SMALL DISPLACEMENTS

Authors
SU DC CHIU MH CHEN CD
Citation
Dc. Su et al., A HETERODYNE INTERFEROMETER USING AN ELECTROOPTIC MODULATOR FOR MEASURING SMALL DISPLACEMENTS, Journal of optics, 27(1), 1996, pp. 19-23
Citations number
15
Categorie Soggetti
Optics
Journal title
Journal of optics → ACNP
ISSN journal
0150536X
Volume
27
Issue
1
Year of publication
1996
Pages
19 - 23
Database
ISI
SICI code
0150-536X(1996)27:1<19:AHIUAE>2.0.ZU;2-V
Abstract
In this heterodyne interferometer for measuring small displacements, a n electro-optic modulator is used as a frequency shifter. It has some merits, such as, free from the mechanical vibration, simple and compac t optical structure, and a general and inexpensive electrical signal p rocessing circuit can be used without decreasing the measuring resolut ion and easily operated in real time.