1. Signal and noise analysis of optical coherence tomography in highly scattering material at 1550nm

    Signal and noise analysis of optical coherence tomography in highly scattering material at 1550nm
    The signal and noise properties of standard time domain optical coherence tomography system are analyzed in near-infrared region based on extended Huygens-Fresnel principle. The signal-to-noise ratio and maximum probing depth are estimated for scattering media with discontinuity plane inside. In numerical simulation, the relationship between coherent signal and scattering coefficients, and depth dependence SNR are calculated. The difference between specular and diffuse reflection is given out and analyzed. Numerical result is verified by well established experiment with different concentration mixture solution of IntralipidTM, from 1% to 15%. The OCT system consists of fiber Michelson interferometer and 1550 nm ASE optical ...
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