Reconstruction of displacement waveforms with a single-channel laser-diode feedback interferometer

Author

Merlo, Sabina ; Donati, Silvano

Author_Institution

Dipt. di Elettronica, Pavia Univ., Italy

Volume

33

Issue

4

fYear

1997

fDate

4/1/1997 12:00:00 AM

Firstpage

527

Lastpage

531

Abstract

Using a laser-diode feedback interferometer, we show how to reconstruct without ambiguity the displacement waveform of an external target from a single interferometric signal. We present the underlying theory with numerical simulations and report an example of actual reconstruction from experimental data. Reconstruction accuracy is on the order of tens of nanometers for displacements of a few micrometers

Keywords

displacement measurement; laser feedback; laser modes; light interferometry; measurement by laser beam; measurement errors; measurement theory; semiconductor lasers; ambiguity; displacement measurement; displacement waveform; displacement waveforms; external target; light interferometry; micrometers; nanometers; numerical simulations; reconstruction accuracy; single interferometric signal; single-channel laser-diode feedback interferometer; Displacement measurement; Laser feedback; Laser modes; Laser theory; Numerical simulation; Optical attenuators; Optical bistability; Optical feedback; Optical interferometry; Signal processing;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.563379

Filename

563379