Share Email Print
cover

Proceedings Paper

Actively phase-compensated portable fiber optic electronic speckle pattern interferometer (ESPI) for long-term in-situ measurements
Author(s): Alexander Brozeit; Klaus D. Hinsch
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The design and performance of an actively phase-compensated fiber-optic speckle pattern interferometer (ESPI) is presented. Due to its portability, illuminating beam flexibility and lightweight design it provides an alternative to standard bulk-optics FSPI systems for many applications. Phase stabilization allows for long-term measurements up to several days. In addition, the provided phase stepping uses the four-step algorithm, is self calibrating, and can be performed at quasi video rate. The use of all highly birefringent fiber-optics components ensures linearly polarized light for the illuminating beams under all operating conditions.

Paper Details

Date Published: 17 July 1996
PDF: 6 pages
Proc. SPIE 2860, Laser Interferometry VIII: Techniques and Analysis, (17 July 1996); doi: 10.1117/12.276300
Show Author Affiliations
Alexander Brozeit, Carl von Ossietzky Univ. (Germany)
Klaus D. Hinsch, Carl von Ossietzky Univ. (Germany)


Published in SPIE Proceedings Vol. 2860:
Laser Interferometry VIII: Techniques and Analysis
Malgorzata Kujawinska; Ryszard J. Pryputniewicz; Mitsuo Takeda, Editor(s)

© SPIE. Terms of Use
Back to Top