2017
DOI: 10.1117/1.jbo.22.9.096013
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Phase and amplitude correction in polygon tunable laser-based optical coherence tomography

Abstract: Phase instability is a serious problem in swept-source optical coherence tomography (OCT) with polygon tunable lasers; however, these devices have additional issues. We found that polygon tunable lasers also have fluctuations in output power and sweep range: the former creates artifacts that may impair the recognition of sample information, and the latter reduces the interference signal utilization during phase correction. We demonstrate a method that uses the calibration signal to quantify these problems and … Show more

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Cited by 3 publications
(1 citation statement)
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“…We firstly aligned all the A-lines through MZI interference signals and remove fixed-pattern noise [14], and then implement fast-Fourier transform (FFT) to all A-lines and obtain its amplitude, as usual SS-OCT processing step. Then, two dimension discrete cross-correlation algorithm is calculated between the adjacent repeated B-Scans:…”
Section: Digital Signal Processingmentioning
confidence: 99%
“…We firstly aligned all the A-lines through MZI interference signals and remove fixed-pattern noise [14], and then implement fast-Fourier transform (FFT) to all A-lines and obtain its amplitude, as usual SS-OCT processing step. Then, two dimension discrete cross-correlation algorithm is calculated between the adjacent repeated B-Scans:…”
Section: Digital Signal Processingmentioning
confidence: 99%