An improved dynamic model for optical feedback self-mixing interferometry-based measurement and instrumentation

J. Xi, University of Wollongong
Yuanguang Yu, University of Wollongong
E. Li, University of Wollongong
J. F. Chicharo, University of Wollongong

Article comments

This paper originally appeared as: Xi, J, Yu, Y, Li, E & Chicharo, J, An improved dynamic model for optical feedback self-mixing interferometry-based measurement and instrumentation, Proceedings of the Eighth International Symposium on Signal Processing and Its Applications, 28-31 August 2005, vol 2, 871-874. Copyright IEEE 2005.

Abstract

This paper presents a new model that describes the behaviour of optical feedback self-mixing interferometry (OFSMI). Compared to the existing model, the proposed one does not suffer from the multiple value ambiguity problems. The proposed model is a dynamic one that gives a unique relationship between the external target moving law and the self-mixing signal (SMS) waveform (SMS) when other parameters are given. A computer simulation tool for OFSMI has been implemented to generate SMS waveforms and its effectiveness has been verified by experimental data.