OVERCOMING COHERENCE LENGTH LIMITATION IN 2 WAVELENGTH INTERFEROMETRY- AN EXPERIMENTAL-VERIFICATION

Authors
FISCHER E DALHOFF E TIZIANI H
Citation
E. Fischer et al., OVERCOMING COHERENCE LENGTH LIMITATION IN 2 WAVELENGTH INTERFEROMETRY- AN EXPERIMENTAL-VERIFICATION, Optics communications, 123(4-6), 1996, pp. 465-472
Citations number
13
Categorie Soggetti
Optics
Journal title
Optics communications → ACNP
ISSN journal
00304018
Volume
123
Issue
4-6
Year of publication
1996
Pages
465 - 472
Database
ISI
SICI code
0030-4018(1996)123:4-6<465:OCLLI2>2.0.ZU;2-V
Abstract
An experimental verification of the possibility of interferometric mea surements at distances at which the optical path difference exceeds th e coherence length of the laser source will be presented. A two-wavele ngth heterodyne interferometer setup using one diode laser source and an acousto-optic modulator for the generation of the second wavelength is described and measurements at a distance of 110 m are shown.