Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Improving the measurement performance for a self-mixing interferometry-based displacement sensing system

Not Accessible

Your library or personal account may give you access

Abstract

Approaches that are, to our knowledge, novel, are proposed in this paper to improve the accuracy performance of self-mixing interferometry (SMI) for displacement measurement. First, the characteristics associated with signals observed in SMI systems are studied, based on which a new procedure is proposed for achieving accurate estimation of the laser phase. The studies also revealed the reasons for the inherent errors associated with the existing SMI-based techniques for displacement measurement. Then, this paper presents a new method for estimating the optical feedback level factor (denoted by C) in real time. Combining the new algorithms for estimating the laser phase and updating C value, the paper finally presents a novel technique for displacement measurement with improved accuracy performance in contrast to existing techniques. The proposed technique is verified by both simulation and experimental data.

© 2011 Optical Society of America

Full Article  |  PDF Article
More Like This
Simultaneous measurement of vibration and parameters of a semiconductor laser using self-mixing interferometry

Yan Gao, Yanguang Yu, Jiangtao Xi, and Qinghua Guo
Appl. Opt. 53(19) 4256-4263 (2014)

Equivalent wavelength self-mixing interferometry for displacement measurement

Zhen Huang, Chengwei Li, Songquan Li, and Dongyu Li
Appl. Opt. 55(25) 7120-7125 (2016)

Improved method for estimation of multiple parameters in self-mixing interferometry

Yan Gao, Yanguang Yu, Jiangtao Xi, Qinghua Guo, Jun Tong, and Sheng Tong
Appl. Opt. 54(10) 2703-2709 (2015)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (12)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (10)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved