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Conferences > ECBO > 2017 > AOCTEI > 104160J
  • Optical Coherence Imaging Techniques and Imaging in Scattering Media II
  • SPIE Proceedings (Optica Publishing Group, 2017),
  • paper 104160J
  • •https://doi.org/10.1117/12.2286854

nm FDML laser with centimeter coherence length and 1.67 MHz sweep rate for full eye length and retinal ultra-widefield OCT

Jan Philip Kolb, Julian Klee, Tom Pfeiffer, and Robert Huber

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Abstract

We present a new design of a 1060nm Fourier Domain Mode Locked-Laser (FDML-Laser) that combines 1.67 MHz A-scan rate with a centimeter scale coherence length. The extended coherence length is achieved by synchronizing the cavity roundtrip time over the 75 nm sweep with a relative accuracy of 10−7. We will show that this requires careful combination of multiple fiber types in the cavity with a gradient heated chirped Fiber Bragg grating.

© 2017 SPIE

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