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Extra long imaging range swept source optical coherence tomography using re-circulation loops

Bradu, Adrian, Neagu, Liviu, Podoleanu, Adrian G.H. (2010) Extra long imaging range swept source optical coherence tomography using re-circulation loops. Optics Express, 18 (24). pp. 25361-25370. ISSN 1094-4087. (doi:10.1364/OE.18.025361)

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http://dx.doi.org/10.1364/OE.18.025361

Abstract

One of the main drawbacks of the swept source optical coherence tomography (SS-OCT) is its limited axial range. A novel interferometer configuration is proposed, equipped in each arm with an adjustable path length ring. By compensating the losses in the rings using semiconductor optical amplifiers, multiple paths A-scans can be obtained which when combined axially, can lead to an extremely long overall axial range. The effect of the re-circulation loops is equivalent with extending the coherence length of the swept source. In this way, the axial imaging range in SS-OCT can be pushed well beyond the limit imposed by the coherence length of the laser, to exceed in principle many centimeters.

Item Type: Article
DOI/Identification number: 10.1364/OE.18.025361
Uncontrolled keywords: Optical coherence tomography; Semiconductor optical amplifiers.
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK8300 Optoelectronic devices. Photoelectronic devices
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Adrian Podoleanu
Date Deposited: 12 Dec 2012 13:06 UTC
Last Modified: 26 Jan 2020 04:04 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/32775 (The current URI for this page, for reference purposes)
Podoleanu, Adrian G.H.: https://orcid.org/0000-0002-4899-9656
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