1 August 2017 1060nm FDML laser with centimeter coherence length and 1.67 MHz sweep rate for full eye length and retinal ultra-widefield OCT
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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.
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Jan Philip Kolb, Jan Philip Kolb, Julian Klee, Julian Klee, Tom Pfeiffer, Tom Pfeiffer, Robert Huber, Robert Huber, } "1060nm FDML laser with centimeter coherence length and 1.67 MHz sweep rate for full eye length and retinal ultra-widefield OCT", Proc. SPIE 10416, Optical Coherence Imaging Techniques and Imaging in Scattering Media II, 104160J (1 August 2017); doi: 10.1117/12.2286854; https://doi.org/10.1117/12.2286854
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