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Ultrahigh-resolution optical coherence tomography with a fiber laser source at 1 microm.

  • Author(s): Lim, Hyungsik
  • Jiang, Yi
  • Wang, Yimin
  • Huang, Yu-Chih
  • Chen, Zhongping
  • Wise, Frank W
  • et al.
Abstract

We report a compact, high-power, fiber-based source for ultrahigh-resolution optical coherence tomography (OCT) near 1 microm. The practical source is based on a short-pulse, ytterbium-doped fiber laser and on generation of a continuum spectrum in a photonic crystal fiber. The broadband emission has an average power of 140 mW and offers an axial resolution of 2.1 microm in air (<1.6 microm in biological tissue). The generation of a broad bandwidth is robust and efficient. We demonstrate ultrahigh-resolution, time-domain OCT imaging of in vitro and in vivo biological tissues.

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