Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Complex Conjugate Resolved Retinal Imaging by One-micrometer Spectral Domain Optical Coherence Tomography Using an Electro-optical Phase Modulator

  • Fabritius, Tapio E.J. (Computational Optics Group, University of Tsukuba) ;
  • Makita, Shuichi (Computational Optics Group, University of Tsukuba) ;
  • Yamanari, Masahiro (Computational Optics Group, University of Tsukuba) ;
  • Myllyla, Risto A. (Optoelectronics and Measurement Techniques Laboratory, University of Oulu) ;
  • Yasuno, Yoshiaki (Computational Optics Group, University of Tsukuba)
  • Received : 2011.02.23
  • Accepted : 2011.04.19
  • Published : 2011.06.25
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Abstract

Full-range spectral domain optical coherence tomography (SD-OCT) with a 1-${\mu}m$ 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 $9.6{\mu}m$ in air and the maximum sensitivity 99.4 dB. To demonstrate the effect of mirror image elimination, In vivo human eye pathology was measured.

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References

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