Performance review of multiple reference vs. time domain optical coherence tomography
Neuhaus, Kai McNamara, Paul Alexandrov, Sergey O'Gorman, Sean Hogan, Josh Wilson, Carol Leahy, Martin J.
Neuhaus, Kai
McNamara, Paul
Alexandrov, Sergey
O'Gorman, Sean
Hogan, Josh
Wilson, Carol
Leahy, Martin J.
Publication Date
2018-01-01
Type
Article
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Neuhaus, Kai; McNamara, Paul; Alexandrov, Sergey; O'Gorman, Sean; Hogan, Josh; Wilson, Carol; Leahy, Martin J. (2018). Performance review of multiple reference vs. time domain optical coherence tomography. IEEE Photonics Journal 10 (3),
Abstract
We present a detailed characterization of noise sources in multiple reference optical coherence tomography (MR-OCT) compared to time-domain OCT (TD-OCT). The noise characteristics were modeled based on the TD-OCT noise model and modified for MR-OCT and confirmed with measurements. The MR-OCT sensitivity characteristics are significantly affected by the reflection from the partial mirror, which also introduces a natural attenuation in the reference arm, partially matching the reflectivity intensity profile of human tissue. At optimal balance between sample and reference armand using balanced detection, the peak sensitivity was measured to be 95 dB, which is close to simple Fourier-domain systems. The results provide a better understanding of the application range for MR-OCT and higher order effects observed, suggesting a nontrivial noise model for MR-OCT.
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Publisher
Institute of Electrical and Electronics Engineers (IEEE)
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Attribution-NonCommercial-NoDerivs 3.0 Ireland