Dynamic Compensation of Path Length Difference in Optical Coherence Tomography by an Automatic Temperature Control System of Optical Fiber
Optical fiber is widely used in optical coherence tomography (OCT) to propagate light precisely with low attenuation and low dispersion. However, the total optical path length within the optical fiber varies in accordance with changes of the temperature. This leads changes in the total optical trave...
Main Authors: | , , , , , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
IEEE
2020-01-01
|
Series: | IEEE Access |
Subjects: | |
Online Access: | https://ieeexplore.ieee.org/document/9078072/ |
_version_ | 1819171015011336192 |
---|---|
author | Daewoon Seong Sangyeob Han Deokmin Jeon Yoonseok Kim Ruchire Eranga Wijesinghe Naresh Kumar Ravichandran Jaeyul Lee Junsoo Lee Pilun Kim Dong-Eun Lee Mansik Jeon Jeehyun Kim |
author_facet | Daewoon Seong Sangyeob Han Deokmin Jeon Yoonseok Kim Ruchire Eranga Wijesinghe Naresh Kumar Ravichandran Jaeyul Lee Junsoo Lee Pilun Kim Dong-Eun Lee Mansik Jeon Jeehyun Kim |
author_sort | Daewoon Seong |
collection | DOAJ |
description | Optical fiber is widely used in optical coherence tomography (OCT) to propagate light precisely with low attenuation and low dispersion. However, the total optical path length within the optical fiber varies in accordance with changes of the temperature. This leads changes in the total optical travel path of the interfering signals and results in shifting of OCT image position to an unintended depth pixel value. In this paper, we presented the temperature-based automatic path length compensating method in OCT to limit the external temperature effect and control the image position in micro-scale without manual movement of optical components. By utilizing developed hardware and software of automatic temperature control system, the external temperature of optical fiber is precisely regulated that evokes thermal expansion and finally changes the physical length of fiber, which is main mechanism of temperature-based path length compensating method. The effectiveness of the presented method was verified by two-dimensional OCT images of mirror and in vivo retina. The obtained results confirmed the path length variance due to temperature change is computable and can be regulated in real-time for whole pixel range of OCT image. Therefore, the proposed temperature-based path length compensating method can be used as an alternative method to precisely control the position of OCT image, while eliminating the effect of external temperature and apply to effectively configuring compact optical systems. |
first_indexed | 2024-12-22T19:44:34Z |
format | Article |
id | doaj.art-f822d319ce084c6dbbfe96f82d1f1937 |
institution | Directory Open Access Journal |
issn | 2169-3536 |
language | English |
last_indexed | 2024-12-22T19:44:34Z |
publishDate | 2020-01-01 |
publisher | IEEE |
record_format | Article |
series | IEEE Access |
spelling | doaj.art-f822d319ce084c6dbbfe96f82d1f19372022-12-21T18:14:43ZengIEEEIEEE Access2169-35362020-01-018775017751010.1109/ACCESS.2020.29903579078072Dynamic Compensation of Path Length Difference in Optical Coherence Tomography by an Automatic Temperature Control System of Optical FiberDaewoon Seong0Sangyeob Han1Deokmin Jeon2Yoonseok Kim3Ruchire Eranga Wijesinghe4Naresh Kumar Ravichandran5https://orcid.org/0000-0002-3712-5304Jaeyul Lee6Junsoo Lee7https://orcid.org/0000-0001-8146-6862Pilun Kim8Dong-Eun Lee9Mansik Jeon10https://orcid.org/0000-0003-2271-1885Jeehyun Kim11School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu, South KoreaSchool of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu, South KoreaSchool of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu, South KoreaSchool of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu, South KoreaDepartment of Biomedical Engineering, College of Engineering, Kyungil University, Gyeongsan, South KoreaSchool of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu, South KoreaSchool of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu, South KoreaSchool of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu, South KoreaSchool of Medicine, Institute of Biomedical Engineering, Kyungpook National University, Daegu, South KoreaSchool of Architecture and Civil Engineering, Kyungpook National University, Daegu, South KoreaSchool of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu, South KoreaSchool of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu, South KoreaOptical fiber is widely used in optical coherence tomography (OCT) to propagate light precisely with low attenuation and low dispersion. However, the total optical path length within the optical fiber varies in accordance with changes of the temperature. This leads changes in the total optical travel path of the interfering signals and results in shifting of OCT image position to an unintended depth pixel value. In this paper, we presented the temperature-based automatic path length compensating method in OCT to limit the external temperature effect and control the image position in micro-scale without manual movement of optical components. By utilizing developed hardware and software of automatic temperature control system, the external temperature of optical fiber is precisely regulated that evokes thermal expansion and finally changes the physical length of fiber, which is main mechanism of temperature-based path length compensating method. The effectiveness of the presented method was verified by two-dimensional OCT images of mirror and in vivo retina. The obtained results confirmed the path length variance due to temperature change is computable and can be regulated in real-time for whole pixel range of OCT image. Therefore, the proposed temperature-based path length compensating method can be used as an alternative method to precisely control the position of OCT image, while eliminating the effect of external temperature and apply to effectively configuring compact optical systems.https://ieeexplore.ieee.org/document/9078072/Optical fiberautomatic temperature control systemthermal expansionmicro position controloptical coherence tomography |
spellingShingle | Daewoon Seong Sangyeob Han Deokmin Jeon Yoonseok Kim Ruchire Eranga Wijesinghe Naresh Kumar Ravichandran Jaeyul Lee Junsoo Lee Pilun Kim Dong-Eun Lee Mansik Jeon Jeehyun Kim Dynamic Compensation of Path Length Difference in Optical Coherence Tomography by an Automatic Temperature Control System of Optical Fiber IEEE Access Optical fiber automatic temperature control system thermal expansion micro position control optical coherence tomography |
title | Dynamic Compensation of Path Length Difference in Optical Coherence Tomography by an Automatic Temperature Control System of Optical Fiber |
title_full | Dynamic Compensation of Path Length Difference in Optical Coherence Tomography by an Automatic Temperature Control System of Optical Fiber |
title_fullStr | Dynamic Compensation of Path Length Difference in Optical Coherence Tomography by an Automatic Temperature Control System of Optical Fiber |
title_full_unstemmed | Dynamic Compensation of Path Length Difference in Optical Coherence Tomography by an Automatic Temperature Control System of Optical Fiber |
title_short | Dynamic Compensation of Path Length Difference in Optical Coherence Tomography by an Automatic Temperature Control System of Optical Fiber |
title_sort | dynamic compensation of path length difference in optical coherence tomography by an automatic temperature control system of optical fiber |
topic | Optical fiber automatic temperature control system thermal expansion micro position control optical coherence tomography |
url | https://ieeexplore.ieee.org/document/9078072/ |
work_keys_str_mv | AT daewoonseong dynamiccompensationofpathlengthdifferenceinopticalcoherencetomographybyanautomatictemperaturecontrolsystemofopticalfiber AT sangyeobhan dynamiccompensationofpathlengthdifferenceinopticalcoherencetomographybyanautomatictemperaturecontrolsystemofopticalfiber AT deokminjeon dynamiccompensationofpathlengthdifferenceinopticalcoherencetomographybyanautomatictemperaturecontrolsystemofopticalfiber AT yoonseokkim dynamiccompensationofpathlengthdifferenceinopticalcoherencetomographybyanautomatictemperaturecontrolsystemofopticalfiber AT ruchireerangawijesinghe dynamiccompensationofpathlengthdifferenceinopticalcoherencetomographybyanautomatictemperaturecontrolsystemofopticalfiber AT nareshkumarravichandran dynamiccompensationofpathlengthdifferenceinopticalcoherencetomographybyanautomatictemperaturecontrolsystemofopticalfiber AT jaeyullee dynamiccompensationofpathlengthdifferenceinopticalcoherencetomographybyanautomatictemperaturecontrolsystemofopticalfiber AT junsoolee dynamiccompensationofpathlengthdifferenceinopticalcoherencetomographybyanautomatictemperaturecontrolsystemofopticalfiber AT pilunkim dynamiccompensationofpathlengthdifferenceinopticalcoherencetomographybyanautomatictemperaturecontrolsystemofopticalfiber AT dongeunlee dynamiccompensationofpathlengthdifferenceinopticalcoherencetomographybyanautomatictemperaturecontrolsystemofopticalfiber AT mansikjeon dynamiccompensationofpathlengthdifferenceinopticalcoherencetomographybyanautomatictemperaturecontrolsystemofopticalfiber AT jeehyunkim dynamiccompensationofpathlengthdifferenceinopticalcoherencetomographybyanautomatictemperaturecontrolsystemofopticalfiber |