Self-Mixing Interferometer Based on Frequency Analysis Method for Accurate Refractive Index Measurement

A new method based on self-mixing interference (SMI) for refractive index measurement by means of simply frequency analysis is proposed. The optical phase shift is implemented by translating a transparent object through a motorized stage with a setting velocity. Then, the refractive index is determi...

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Main Authors: Yongbing Zhang, Yingbin Wei, Chenxi Chen, Wencai Huang, Xiulin Wang, Huizhen Xu
Format: Article
Language:English
Published: IEEE 2016-01-01
Series:IEEE Photonics Journal
Subjects:
Online Access:https://ieeexplore.ieee.org/document/7389325/
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author Yongbing Zhang
Yingbin Wei
Chenxi Chen
Wencai Huang
Xiulin Wang
Huizhen Xu
author_facet Yongbing Zhang
Yingbin Wei
Chenxi Chen
Wencai Huang
Xiulin Wang
Huizhen Xu
author_sort Yongbing Zhang
collection DOAJ
description A new method based on self-mixing interference (SMI) for refractive index measurement by means of simply frequency analysis is proposed. The optical phase shift is implemented by translating a transparent object through a motorized stage with a setting velocity. Then, the refractive index is determined by the frequency of SMI fringes. A relative repeatability of refractive index estimated in <inline-formula> <tex-math notation="LaTeX">$1.0\times 10^{-4}$</tex-math></inline-formula> is achieved experimentally. This method has found that there exists an optimal velocity to achieve minimum error of refractive index measurement.
format Article
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institution Kabale University
issn 1943-0655
language English
publishDate 2016-01-01
publisher IEEE
record_format Article
series IEEE Photonics Journal
spelling doaj-art-bf78fefb1a874b849d10d1d7f91cb7582025-08-20T03:31:16ZengIEEEIEEE Photonics Journal1943-06552016-01-01821610.1109/JPHOT.2016.25208227389325Self-Mixing Interferometer Based on Frequency Analysis Method for Accurate Refractive Index MeasurementYongbing Zhang0Yingbin Wei1Chenxi Chen2Wencai Huang3Xiulin Wang4Huizhen Xu5Dept. of Electron. Eng., Xiamen Univ., Xiamen, ChinaDept. of Electron. Eng., Xiamen Univ., Xiamen, ChinaDept. of Electron. Eng., Xiamen Univ., Xiamen, ChinaDept. of Electron. Eng., Xiamen Univ., Xiamen, ChinaDept. of Phys., Jimei Univ., Xiamen, ChinaDept. of Phys., Jimei Univ., Xiamen, ChinaA new method based on self-mixing interference (SMI) for refractive index measurement by means of simply frequency analysis is proposed. The optical phase shift is implemented by translating a transparent object through a motorized stage with a setting velocity. Then, the refractive index is determined by the frequency of SMI fringes. A relative repeatability of refractive index estimated in <inline-formula> <tex-math notation="LaTeX">$1.0\times 10^{-4}$</tex-math></inline-formula> is achieved experimentally. This method has found that there exists an optimal velocity to achieve minimum error of refractive index measurement.https://ieeexplore.ieee.org/document/7389325/Self-mixing interference (SMI)Refractive indexFrequency
spellingShingle Yongbing Zhang
Yingbin Wei
Chenxi Chen
Wencai Huang
Xiulin Wang
Huizhen Xu
Self-Mixing Interferometer Based on Frequency Analysis Method for Accurate Refractive Index Measurement
IEEE Photonics Journal
Self-mixing interference (SMI)
Refractive index
Frequency
title Self-Mixing Interferometer Based on Frequency Analysis Method for Accurate Refractive Index Measurement
title_full Self-Mixing Interferometer Based on Frequency Analysis Method for Accurate Refractive Index Measurement
title_fullStr Self-Mixing Interferometer Based on Frequency Analysis Method for Accurate Refractive Index Measurement
title_full_unstemmed Self-Mixing Interferometer Based on Frequency Analysis Method for Accurate Refractive Index Measurement
title_short Self-Mixing Interferometer Based on Frequency Analysis Method for Accurate Refractive Index Measurement
title_sort self mixing interferometer based on frequency analysis method for accurate refractive index measurement
topic Self-mixing interference (SMI)
Refractive index
Frequency
url https://ieeexplore.ieee.org/document/7389325/
work_keys_str_mv AT yongbingzhang selfmixinginterferometerbasedonfrequencyanalysismethodforaccuraterefractiveindexmeasurement
AT yingbinwei selfmixinginterferometerbasedonfrequencyanalysismethodforaccuraterefractiveindexmeasurement
AT chenxichen selfmixinginterferometerbasedonfrequencyanalysismethodforaccuraterefractiveindexmeasurement
AT wencaihuang selfmixinginterferometerbasedonfrequencyanalysismethodforaccuraterefractiveindexmeasurement
AT xiulinwang selfmixinginterferometerbasedonfrequencyanalysismethodforaccuraterefractiveindexmeasurement
AT huizhenxu selfmixinginterferometerbasedonfrequencyanalysismethodforaccuraterefractiveindexmeasurement