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Sagnac interferometer based optical coherence tomography

We present in this paper an all-fiber Optical Coherence Tomography OCT system in the time domain by employing a Sagnac fiber loop. The optical fiber version of TD-OCT uses directional couplers to construct a Michelson interferometer instead of a beam splitter which is used in the bulk optics version...

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Main Authors:	Shalaby A.M., Shalaby M.
Other Authors:	57219433216
Format:	Article
Published:	Ain Shams University 2025
Subjects:	Fiber optic sensors Michelson interferometers Mirrors Optical fibers All fiber Bulk optics Fiber-optical Michelson's interferometer Movable mirrors Optical delay Optical signals Sagnac fiber loop Sagnac interferometer Time domain Optical tomography
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id	my.uniten.dspace-36697
record_format	dspace
spelling	my.uniten.dspace-366972025-03-03T15:43:59Z Sagnac interferometer based optical coherence tomography Shalaby A.M. Shalaby M. 57219433216 57189881220 Fiber optic sensors Michelson interferometers Mirrors Optical fibers All fiber Bulk optics Fiber-optical Michelson's interferometer Movable mirrors Optical delay Optical signals Sagnac fiber loop Sagnac interferometer Time domain Optical tomography We present in this paper an all-fiber Optical Coherence Tomography OCT system in the time domain by employing a Sagnac fiber loop. The optical fiber version of TD-OCT uses directional couplers to construct a Michelson interferometer instead of a beam splitter which is used in the bulk optics version. Instead of implementing the optical delay by an external movable mirror, we present a new configuration that employs a Sagnac interferometer. Avoiding the use of an external movable mirror, eliminates the problems of alignment to couple back the optical signal into the fiber after being delayed by the external mirror. Moreover, this all-fiber system has the advantage of being compact and having large values of optical path difference. ? 2023 Faculty of Engineering, Ain Shams University Final 2025-03-03T07:43:59Z 2025-03-03T07:43:59Z 2024 Article 10.1016/j.asej.2023.102456 2-s2.0-85169056859 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85169056859&doi=10.1016%2fj.asej.2023.102456&partnerID=40&md5=34f20fbc423f2a209982c672c1c069f3 https://irepository.uniten.edu.my/handle/123456789/36697 15 3 102456 All Open Access; Gold Open Access Ain Shams University Scopus
institution	Universiti Tenaga Nasional
building	UNITEN Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tenaga Nasional
content_source	UNITEN Institutional Repository
url_provider	http://dspace.uniten.edu.my/
topic	Fiber optic sensors Michelson interferometers Mirrors Optical fibers All fiber Bulk optics Fiber-optical Michelson's interferometer Movable mirrors Optical delay Optical signals Sagnac fiber loop Sagnac interferometer Time domain Optical tomography
spellingShingle	Fiber optic sensors Michelson interferometers Mirrors Optical fibers All fiber Bulk optics Fiber-optical Michelson's interferometer Movable mirrors Optical delay Optical signals Sagnac fiber loop Sagnac interferometer Time domain Optical tomography Shalaby A.M. Shalaby M. Sagnac interferometer based optical coherence tomography
description	We present in this paper an all-fiber Optical Coherence Tomography OCT system in the time domain by employing a Sagnac fiber loop. The optical fiber version of TD-OCT uses directional couplers to construct a Michelson interferometer instead of a beam splitter which is used in the bulk optics version. Instead of implementing the optical delay by an external movable mirror, we present a new configuration that employs a Sagnac interferometer. Avoiding the use of an external movable mirror, eliminates the problems of alignment to couple back the optical signal into the fiber after being delayed by the external mirror. Moreover, this all-fiber system has the advantage of being compact and having large values of optical path difference. ? 2023 Faculty of Engineering, Ain Shams University
author2	57219433216
author_facet	57219433216 Shalaby A.M. Shalaby M.
format	Article
author	Shalaby A.M. Shalaby M.
author_sort	Shalaby A.M.
title	Sagnac interferometer based optical coherence tomography
title_short	Sagnac interferometer based optical coherence tomography
title_full	Sagnac interferometer based optical coherence tomography
title_fullStr	Sagnac interferometer based optical coherence tomography
title_full_unstemmed	Sagnac interferometer based optical coherence tomography
title_sort	sagnac interferometer based optical coherence tomography
publisher	Ain Shams University
publishDate	2025
_version_	1825816145712644096
score	13.244109

Sagnac interferometer based optical coherence tomography

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