Abstract
We propose methods to align interferograms affected by trigger jitter to a reference interferogram based on the information (amplitude/phase) at a fixed-pattern noise location to reduce residual fixedpattern noise and improve the phase stability of swept source optical coherence tomography (SS-OCT) systems. One proposed method achieved this by introducing a wavenumber shift (k-shift) in the interferograms of interest and searching for the k-shift that minimized the fixed-pattern noise amplitude. The other method calculated the relative k-shift using the phase information at the residual fixed-pattern noise location. Repeating this wavenumber alignment procedure for all A-lines of interest produced fixedpattern noise free and phase stable OCT images. A system incorporating these correction routines was used for human retina OCT and Doppler OCT imaging. The results from the two methods were compared, and it was found that the intensity-based method provided better results.
Original language | English (US) |
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Pages (from-to) | 9824-9834 |
Number of pages | 11 |
Journal | Optics express |
Volume | 23 |
Issue number | 8 |
DOIs | |
State | Published - 2015 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics