Abstract
Full-range spectral domain optical coherence tomography (SD-OCT) with a 1-μm
band light source is shown here. The phase of the reference beam is continuously
stepped while the probing beam scans the sample laterally (B-scan). The two
dimensional spectral interferogram obtained is processed by a Fourier transform
method to obtain a complex spectrum leading to a full-range OCT image. A detailed
mathematical explanation of the complex conjugate resolving method utilized is
provided. The system’s measurement speed was 7.96 kHz, the measured axial resolution
was 9.6 μm in air and the maximum sensitivity 99.4 dB. To demonstrate the effect of
mirror image elimination, In vivo human eye pathology was measured.
© 2011 Optical Society of Korea
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