Auto Adaptive Signal Processing of a Laser Diode Self-Mixing Displacement Sensor

Author

Plantier, Guy ; Bes, Caroline ; Bosch, Thierry ; Bony, Francis

Author_Institution

Ecole Superieure d´´Electronique de l´´Ouest, Angers

Volume

2

fYear

2005

fDate

16-19 May 2005

Firstpage

1013

Lastpage

1017

Abstract

A semiconductor laser subject to optical moderate feedback can be used to design an interferometric displacement sensor. The auto adaptive signal processing presented in this paper has been computed in order to ameliorate the accuracy of such a sensor. This set-up has been successfully tested for both harmonic and aleatory displacements of a remote piezoelectric actuator. Measurements of displacements up to 10 mum has been achieved with an accuracy of plusmn80 nm

Keywords

adaptive signal processing; displacement measurement; optical sensors; semiconductor lasers; -10 to 10 nm; 10 micron; adaptive signal processing; laser diode self-mixing displacement sensor; optical sensor; semiconductor laser; Adaptive signal processing; Diode lasers; Laser feedback; Laser modes; Optical design; Optical feedback; Optical interferometry; Optical sensors; Optical signal processing; Semiconductor lasers; displacement measurement; optical sensor; semiconductor laser; signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2005. IMTC 2005. Proceedings of the IEEE

Conference_Location

Ottawa, Ont.

Print_ISBN

0-7803-8879-8

Type

conf

DOI

10.1109/IMTC.2005.1604293

Filename

1604293