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Balanced-detection visible optical coherence tomography with a low-noise supercontinuum laser

Abbott, Lucy, Nteroli, Gianni, Engelsholm, Rasmus D., Montague, Patrick Bowen, Podoleanu, Adrian G.H., Bradu, Adrian (2025) Balanced-detection visible optical coherence tomography with a low-noise supercontinuum laser. Biomedical Optics Express, 16 (7). pp. 2898-2913. ISSN 2156-7085. (doi:10.1364/BOE.562672) (KAR id:110781)

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Abstract

This paper comprehensively demonstrates the efficiency of balanced detection in a visible optical coherence tomography instrument employing a low-noise supercontinuum laser. By using an innovative technique for digitally aligning camera pixels, we achieved a noise floor reduction of up to 12.8 dB across the entire imaging depth range, particularly near the zero optical path difference between the interferometer arms. The instrument presented here operates at a central wavelength of 590 nm. It delivers high-resolution images with a sensitivity of up to 74 dB in a single spectrometer configuration and 92.8 dB in a balanced configuration. The enhancement in image contrast is exemplified through images of an optical phantom and in-vivo images of a human thumb and nail.

Item Type: Article
DOI/Identification number: 10.1364/BOE.562672
Uncontrolled keywords: balance detection; optical coherence tomography
Subjects: Q Science > QC Physics > QC355 Optics
Institutional Unit: Schools > School of Engineering, Mathematics and Physics > Physics and Astronomy
Former Institutional Unit:
There are no former institutional units.
Funders: Academy of Medical Sciences (https://ror.org/00c489v88)
Royal Society (https://ror.org/03wnrjx87)
Depositing User: Adrian Bradu
Date Deposited: 28 Jul 2025 15:08 UTC
Last Modified: 29 Jul 2025 19:39 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/110781 (The current URI for this page, for reference purposes)

University of Kent Author Information

Abbott, Lucy.

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Nteroli, Gianni.

Creator's ORCID:
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Podoleanu, Adrian G.H..

Creator's ORCID: https://orcid.org/0000-0002-4899-9656
CReDIT Contributor Roles:

Bradu, Adrian.

Creator's ORCID: https://orcid.org/0000-0002-6890-1599
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