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

Fast estimation method of feedback factor based on the derivative of the self-mixing signal

Not Accessible

Your library or personal account may give you access

Abstract

The self-mixing (SM) technique has been a promising optical measurement technique for a few decades. The estimation of the optical feedback factor $ C $ is the key to SM displacement measurement with a better resolution than half a wavelength. But this estimation is extremely complex and tricky, and thus leads to its time-consuming nature, which is one of the important causes that increases the cost and labor for the development of a self-mixing sensor. There have been many methods reported for the $ C $ estimation, but they are very time consuming, very sensitive to noise, or can only work in a certain feedback regime. This paper presents a novel approach to the $ C $ estimation, which is straightforward and can work for all feedback regimes including weak, moderate, and strong. The estimation precision of the proposed method is not only comparable to that of the data fitting technique but also much simpler.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Joint estimation of self-mixing interferometry parameters and displacement reconstruction based on local normalization

Jin-Hyok Kim, Chol-Hyon Kim, Tu-Hon Yun, Hui-Sung Hong, Kwang-Myong Ho, and Kwang-Ho Kim
Appl. Opt. 60(8) 2282-2287 (2021)

Evaluation method for the optical feedback factor and linewidth enhancement factor using phase discontinuities in self-mixing interferometry signals

Chol-Yong Ri, Chol-Su Kim, Guk-Chol Ri, Jong-Chol Kang, Chol-Min Pak, and Jin-Myong O
Appl. Opt. 59(3) 687-693 (2020)

Normalization-free displacement reconstruction method based on fringe scaling

Hui-Song Hong, Chol-Hyon Kim, Jin-Hyok Kim, Chong-Hyok Kim, and Chung-Rok Ri
Appl. Opt. 61(7) 1600-1605 (2022)

References

You do not have subscription access to this journal. Citation lists with outbound citation 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

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 (5)

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 (19)

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

Metrics

Select as filters


Select Topics Cancel
© Copyright 2023 | Optica Publishing Group. All Rights Reserved