1. Articles from Francois Trepanier

    1-2 of 2
    1. Extended coherence length megahertz FDML and its application for anterior segment imaging

      Extended coherence length megahertz FDML and its application for anterior segment imaging
      We present a 1300 nm Fourier domain mode locked (FDML) laser for optical coherence tomography (OCT) that combines both, a high 1.6 MHz wavelength sweep rate and an ultra-long instantaneous coherence length for rapid volumetric deep field imaging. By reducing the dispersion in the fiber delay line of the FDML laser, the instantaneous coherence length and hence the available imaging range is approximately quadrupled compared to previously published MHz-FDML setups, the imaging speed is increased by a factor of 16 compared to previous extended coherence length results. We present a detailed characterization of the FDML laser performance. We demonstrate ...
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    2. Extended coherence length Fourier domain mode locked lasers at 1310 nm

      Extended coherence length Fourier domain mode locked lasers at 1310 nm
      Fourier domain mode locked (FDML) lasers are excellent tunable laser sources for frequency domain optical coherence tomography (FD-OCT) systems due to their combination of high sweep rates, large tuning ranges, and high output powers. However, conventional FDML lasers provide coherence lengths of only 4–10 mm, limiting their use in demanding applications such as intravascular OCT where coherence lengths of >20 mm are required for optimal imaging of large blood vessels. Furthermore, like most swept lasers, conventional FDML lasers produce only one useable sweep direction per tunable filter drive cycle, halving the effective sweep rate of the laser compared to ...
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    1-2 of 2
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  2. Topics in the News

    1. (2 articles) Desmond C. Adler
    2. (2 articles) Joseph M. Schmitt
    3. (2 articles) Wolfgang Wieser
    4. (2 articles) Abbot
    5. (1 articles) Ludwig Maximilian University of Munich
    6. (1 articles) Ludwig-Maximilians University
    7. (1 articles) Robert A. Huber
    8. (1 articles) Christoph M. Eigenwillig
    9. (1 articles) Thomas Klein
    10. (1 articles) Tufts University
    11. (1 articles) UCLA
    12. (1 articles) Massachusetts General Hospital
    13. (1 articles) Capital Medical University
    14. (1 articles) University of Auckland
    15. (1 articles) Frederique Vanholsbeeck
    16. (1 articles) Francesco Bandello
    17. (1 articles) Yoshiyasu Minami
    18. (1 articles) Hang Lee
    19. (1 articles) Carl Zeiss Meditec
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