Ultrahigh resolution optical coherence tomography using a superluminescent light source

Andrew M. Kowalevicz; Tony Ko; Ingmar Hartl; James G. Fujimoto; Markus Pollnau; René P. Salathé

doi:10.1364/OE.10.000349

Ultrahigh resolution optical coherence tomography using a superluminescent light source

Andrew M. Kowalevicz, Tony Ko, Ingmar Hartl, James G. Fujimoto, Markus Pollnau, René P. Salathé

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Abstract

A superluminescent Ti:Al2O3 crystal is demonstrated as a light source for ultrahigh resolution optical coherence tomography (OCT). Single spatial mode, fiber coupled output powers of ~40 μW can be generated with 138 nm bandwidth using a 5 W frequency doubled, diode pumped laser, pumping a thin Ti:Al2O3 crystal. Ultrahigh resolution OCT imaging is demonstrated with 2.2 μm axial resolution in air, or 1.7 μm in tissue, with >86 dB sensitivity. This light source provides a simple and robust alternative to femtosecond lasers for ultrahigh resolution OCT imaging.

Original language	English
Pages (from-to)	349-353
Number of pages	5
Journal	Optics express
Volume	10
Issue number	7
DOIs	https://doi.org/10.1364/OE.10.000349
Publication status	Published - 2002

Keywords

IOMS-APD: Active Photonic Devices
Medical and biological imaging
Medical optics instrumentation
Optical Coherence Tomography

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Kowalevicz2002ultrahighFinal published version, 322 KBLicence: CC BY

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title = "Ultrahigh resolution optical coherence tomography using a superluminescent light source",

abstract = "A superluminescent Ti:Al2O3 crystal is demonstrated as a light source for ultrahigh resolution optical coherence tomography (OCT). Single spatial mode, fiber coupled output powers of ~40 μW can be generated with 138 nm bandwidth using a 5 W frequency doubled, diode pumped laser, pumping a thin Ti:Al2O3 crystal. Ultrahigh resolution OCT imaging is demonstrated with 2.2 μm axial resolution in air, or 1.7 μm in tissue, with >86 dB sensitivity. This light source provides a simple and robust alternative to femtosecond lasers for ultrahigh resolution OCT imaging.",

keywords = "IOMS-APD: Active Photonic Devices, Medical and biological imaging, Medical optics instrumentation, Optical Coherence Tomography",

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AU - Kowalevicz, Andrew M.

AU - Ko, Tony

AU - Hartl, Ingmar

AU - Fujimoto, James G.

AU - Pollnau, Markus

AU - Salathé, René P.

PY - 2002

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AB - A superluminescent Ti:Al2O3 crystal is demonstrated as a light source for ultrahigh resolution optical coherence tomography (OCT). Single spatial mode, fiber coupled output powers of ~40 μW can be generated with 138 nm bandwidth using a 5 W frequency doubled, diode pumped laser, pumping a thin Ti:Al2O3 crystal. Ultrahigh resolution OCT imaging is demonstrated with 2.2 μm axial resolution in air, or 1.7 μm in tissue, with >86 dB sensitivity. This light source provides a simple and robust alternative to femtosecond lasers for ultrahigh resolution OCT imaging.

KW - IOMS-APD: Active Photonic Devices

KW - Medical and biological imaging

KW - Medical optics instrumentation

KW - Optical Coherence Tomography

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JF - Optics express

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Ultrahigh resolution optical coherence tomography using a superluminescent light source

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