A displacement reconstruction algorithm used for optical feedback self mixing interferometry system under different feedback levels

Yuanlong Fan, Yanguang Yu, Jiangtao Xi, Joe Chicharo, Huiying Ye

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Displacement information of a moving target can be detected using an optical feedback self-mixing interferometry (OFSMI) system. A sensing signal observed from the OFSMI system is called self-mixing signal (SMS). The paper studies the waveform features of the SMSs and proposes an algorithm for reconstructing the displacement of a moving target. The reconstruction accuracy of the algorithm mainly depends on the locating accuracy for those characteristic points on a SMS. A set of rules for identifying those characteristic points are described in the paper. The proposed algorithm is verified by simulation signals firstly, and then applied on extensive SMSs which are obtained from the experimental set-up. The results show that the displacement of the external moving target can be reconstructed under different feedback levels.
Original languageEnglish
Title of host publicationProceedings of SPIE - Optical Metrology and Inspection for Industrial Applications
Subtitle of host publicationPhotonics Asia 2010 | 18-20 October 2010
EditorsKevin Harding, Peisen S. Huang, Toru Yoshizawa
PublisherSPIE
ISBN (Print)978-0819483850
Publication statusPublished - Nov 2010
EventPhotonics Asia 2010 - Beijing, China
Duration: 11 Nov 2010 → …

Publication series

NameProceedings of SPIE
Volume7855
ISSN (Print)0277-786X

Conference

ConferencePhotonics Asia 2010
Country/TerritoryChina
CityBeijing
Period11/11/10 → …

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