1. Megahertz OCT for ultrawide-field retinal imaging with a 1050nm Fourier domain mode-locked laser

    Megahertz OCT for ultrawide-field retinal imaging with a 1050nm Fourier domain mode-locked laser
    We demonstrate ultrahigh speed swept source retinal OCT imaging using a Fourier domain mode locked (FDML) laser. The laser uses a combination of a semiconductor optical amplifier and an ytterbium doped fiber amplifier to provide more than 50mW output power. The 1050nm FDML laser uses standard telecom fiber for the km long delay line instead of two orders of magnitude more expensive real single mode fiber. We investigate the influence of this “oligo-mode” fiber on the FDML laser performance. Two design configurations with 684,400 and 1,368,700 axial scans per second are investigated, 25x and 50x faster than ...
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