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Evaluation of effective noise bandwidth for broadband optical coherence tomography operation

Cernat, R., Dobre, George, Bradu, A., Podoleanu, A.G. (2009) Evaluation of effective noise bandwidth for broadband optical coherence tomography operation. Journal of the Optical Society of America A: Optics and Image Science, and Vision, 26 (4). pp. 723-731. ISSN 1084-7529 -. (doi:10.1364/JOSAA.26.000723) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1364/JOSAA.26.000723

Abstract

Key noise parameters in optical coherence tomography (OCT) systems employing splitters with a nonflat spectral response are evaluated using a supercontinuum fiber laser source with a spectrum of 450 nm-1700 nm and a time domain OCT architecture based on 1300 nm fiber splitters. The spectral behavior of the splitter leading to balanced detection is measured over a range of 300 nm. Because of spectrally different signals at the balanced detector input a residual excess photon noise term results. A rigorous treatment of this noise term [Appl. Opt. 43, 4802 (2004)] introduced two new quantities that take into account the spectral properties of the coupler. In this report, we have evaluated these two noise bandwidth quantities and comparatively assessed the noise behavior predicted by the classical theory with the theory based on the two new noise bandwidths. We show that under certain operating parameters, the additional excess photon noise is twice that predicted for a coupler with a flat spectral response. © 2009 Optical Society of America.

Item Type: Article
DOI/Identification number: 10.1364/JOSAA.26.000723
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - J Opt Soc Am A [Field not mapped to EPrints] C2 - 19340245 [Field not mapped to EPrints] AD - Applied Optics Group, University of Kent, Canterbury, CT2 7NH, United Kingdom [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled keywords: Acoustic noise, Coherent light, Diagnostic radiography, Fiber lasers, Optical tomography, Photons, Telecommunication systems, Tomography, Balanced detections, Balanced detectors, Classical theories, Effective noise bandwidths, Excess photon noise, Fiber laser sources, Fiber splitters, Noise bandwidths, Noise behaviors, Noise parameters, Noise terms, Operating parameters, Optical-coherence tomographies, Spectral behaviors, Spectral properties, Spectral response, Supercontinuum, Time domain OCT, Bandwidth, glass fiber, algorithm, article, computer assisted diagnosis, equipment design, fiber optics, instrumentation, methodology, optical coherence tomography, optics, photon, signal processing, statistical model, Algorithms, Equipment Design, Fiber Optic Technology, Image Interpretation, Computer-Assisted, Models, Statistical, Optical Fibers, Optics and Photonics, Photons, Signal Processing, Computer-Assisted, Tomography, Optical Coherence
Subjects: Q Science > QC Physics
R Medicine > R Medicine (General) > R857.O6 Optical coherence tomography
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Giles Tarver
Date Deposited: 14 Jul 2015 15:28 UTC
Last Modified: 01 Aug 2019 10:39 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49472 (The current URI for this page, for reference purposes)
Dobre, George: https://orcid.org/0000-0002-5695-2591
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