Displacement measurements using a self-mixing laser diode under moderate feedback

Displacement measurements using a self-mixing laser diode under moderate feedback

A semiconductor laser subject to moderate optical feedback has been used to design an interferometric displacement sensor. The autoadaptative signal processing presented in this paper has been computed in order to improve the accuracy of such a sensor. This setup has been successfully tested for bot...

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Veröffentlicht in:IEEE transactions on instrumentation and measurement 2006-08, Vol.55 (4), p.1101-1105
Hauptverfasser: Bes, C., Plantier, G., Bosch, T.
Format: Artikel
Sprache:eng
Schlagworte:
Accuracy
Diode lasers
Displacement
Displacement measurement
Engineering Sciences
Instrumentation
Laser feedback
Laser modes
Optical design
Optical feedback
optical feedback interferometry
Optical interferometry
optical sensor
Optical sensors
Optical signal processing
semiconductor laser
Semiconductor lasers
Sensors
Signal and Image processing
Signal processing
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Beschreibung
Zusammenfassung:A semiconductor laser subject to moderate optical feedback has been used to design an interferometric displacement sensor. The autoadaptative signal processing presented in this paper has been computed in order to improve the accuracy of such a sensor. This setup has been successfully tested for both harmonic and aleatory displacements of a remote piezoelectric actuator with a maximum accuracy of 40 nm
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.2006.876544