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

Simultaneous measurement of vibration and parameters of a semiconductor laser using self-mixing interferometry

Not Accessible

Your library or personal account may give you access

Abstract

Laser diode (LD)-based self-mixing interferometry (SMI) is a promising technique for noncontact sensing and its instrumentation. According to the well-known Lang–Kobayashi equations, an SMI waveform is shaped by multiple parameters, including linewidth enhancement factor (denoted as α), optical feedback level factor (denoted as C), and the movement of the external cavity of an LD. This paper presents a new algorithm for simultaneously retrieving the multiple parameters from a piece of SMI signal. First, a set of linear equations is derived based on the existing SMI model. By careful selection of data samples, the linear equations can be made independent and used to determine a set of variables, and thus the values of α and C, as well as the reconstruction coefficients of the external movement. The work in this paper lifts the restrictions existing in SMI-based sensing methods, such as prerequisite knowledge of either α and C or vibration information of an external target. Simulations and experiments are conducted to verify the proposed algorithm.

© 2014 Optical Society of America

Full Article  |  PDF Article
More Like This
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)

Vibration reconstruction and optical feedback parameter evaluation based on the direction discrimination in self-mixing interferometry

Chol-Yong Ri, Jin-Hyok Choe, Hwa-Ryong Ri, Chol-Min Pak, Kyong-Rim Ri, and Jin-Myong O
Appl. Opt. 60(13) 3801-3807 (2021)

Dynamic stability analysis for a self-mixing interferometry system

Yuanlong Fan, Yanguang Yu, Jiangtao Xi, and Qinghua Guo
Opt. Express 22(23) 29260-29269 (2014)

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 (4)

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 (1)

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 (21)

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