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 | |
| 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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Cite this
Kuranov, R. V., McElroy, A. B., Kemp, N., Baranov, S., Taber, J., Feldman, M. D., & Milner, T. E. (2010). Gas-cell referenced swept source phase sensitive optical coherence tomography. IEEE Photonics Technology Letters, 22(20), 1524-1526. [5498950]. https://doi.org/10.1109/LPT.2010.2055842