Measuring Multiple Parameters in a Self-Mixing Optical Feedback System

Yu, Yanguang; Xi, Jiangtao; Li, Enbang; Chicharo, J.F.; Bosch, Thierry

doi:10.1109/commad.2004.1577538

Conference on Optoelectronic and Microelectronic Materials and Devices, 2004.

DOI: 10.1109/commad.2004.1577538

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Measuring Multiple Parameters in a Self-Mixing Optical Feedback System

Yanguang Yu

Jiangtao Xi²,

Enbang Li³

et al.

Abstract: We propose a new approach that yields the values of multiple parameters at the same time for self-mixing optical feedback interferometric systems. These parameters are the linewidth enhancement factor of Semiconductor Lasers, the optical feedback level factor as well as vibration information of a target including the frequency and the amplitude. The method is based on optical feedback interferometry. Its effectiveness has been confirmed by computer simulations and experiments. Disciplines Physical Sciences an… Show more

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Cited by 2 publications

References 9 publications

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

Xi¹,

Yu²,

Li³

et al.

Proceedings of the Eighth International Symposium on Signal Processing and Its Applications, 2005.

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An improved dynamic model for optical feedback self-mixing interferometry-based measurement and instrumentation AbstractThis 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. AN IMPROVED DYNAMIC MODEL FOR OPTICAL FEEDBACK SELF-MIXING INTERFEROMETRY-BASED MEASUREMENT AND INSTRUMENTATION

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

Xi¹,

Yu²,

Li³

et al.

Proceedings of the Eighth International Symposium on Signal Processing and Its Applications, 2005.

Self Cite

View full text Add to dashboard Cite

show abstract

An estimation method for feedback level factor C of a self-mixing interferometry system

Fan

et al. 2010

SPIE Proceedings

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This paper presents a fast estimation method for feedback level factor C of a self-mixing interferometry (SMI) system. The reconstruction of a displacement waveform using a SMI signal needs to know a C value. However, it is difficult to maintain a constant C value during the reconstruction process. We study the features of the reconstructed displacement waveforms incorporating different pre-set C values and classify waveforms into two types. Bisection method is introduced in our method for fast estimating C value. The effectiveness of our proposed method has been verified by both simulation and experimental data.

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Measuring Multiple Parameters in a Self-Mixing Optical Feedback System

Cited by 2 publications

References 9 publications

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

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

An estimation method for feedback level factor C of a self-mixing interferometry system

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