Gas-cell referenced swept source phase sensitive optical coherence tomography

Roman V. Kuranov; Austin B. McElroy; Nate Kemp; Stepan Baranov; Joe Taber; Marc D. Feldman; Thomas E. Milner

doi:10.1109/LPT.2010.2055842

Gas-cell referenced swept source phase sensitive optical coherence tomography

Roman V. Kuranov, Austin B. McElroy, Nate Kemp, Stepan Baranov, Joe Taber, Marc D. Feldman, Thomas E. Milner

Medicine

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Distinct reference and signal interferometers in combination with a gas-cell spectral reference are employed to increase sensitivity and environmental stability of a swept source phase-sensitive optical coherence tomography. A displacement sensitivity (DS) of 65 pm at 280- μm depth and DS degradation with depth of 0.0015 rad/mm is achieved. Differential DS of 234 pm in a 127-μm-thick scattering phantom is six-fold superior to previously reported values. DS degradation with a depth of 0.026 rad/mm is reported for tissue-like scattering phantoms. Measured depth-dependent DS suggests that digitization time jitter noise contributes to degradation of phase sensitivity with depth.

Original language	English (US)
Article number	5498950
Pages (from-to)	1524-1526
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	22
Issue number	20
DOIs	https://doi.org/10.1109/LPT.2010.2055842
State	Published - Oct 11 2010

Keywords

Biomedical optical imaging
optical coherence tomography (OCT)
phase measurements

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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AU - McElroy, Austin B.

AU - Kemp, Nate

AU - Baranov, Stepan

AU - Taber, Joe

AU - Feldman, Marc D.

AU - Milner, Thomas E.

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