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28 October 2009 A novel spectral calibration method in spectral domain optical coherence tomography
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Abstract
A novel but brief method is developed for spectral domain optical coherence tomography(SD-OCT). This method is based on two mirror locales in both sample arm and reference arm, independent of a mercury argon calibration source, and then get the exact spectral distribution on the line array charge coupled device (CCD) through fitting and interpolation. The rescaling parameters is determined by a short time Fourier transformation(STFT) and a series of calculation. A SD-OCT system is set up. The signal-noise-ratio(SNR) of this system is experimentally found to be 51dB. Axial resolution is 8.5μm. Improved 3D image of human retain based on the proposed method is demonstrated.
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Lian Duan and Yonghong He "A novel spectral calibration method in spectral domain optical coherence tomography", Proc. SPIE 7519, Eighth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2009), 751905 (28 October 2009); doi: 10.1117/12.843451; https://doi.org/10.1117/12.843451
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