1060nm 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; Robert Huber

doi:10.1117/12.2286854

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

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

Author Affiliations +

Proceedings Volume 10416, Optical Coherence Imaging Techniques and Imaging in Scattering Media II; 104160J (2017) https://doi.org/10.1117/12.2286854
Event: European Conferences on Biomedical Optics, 2017, Munich, Germany

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.

Citation Download Citation

Jan Philip Kolb, Julian Klee, Tom Pfeiffer, and 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); https://doi.org/10.1117/12.2286854

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