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Proceedings Paper

Multi-MHz FDML OCT: snapshot retinal imaging at 6.7 million axial-scans per second
Author(s): Thomas Klein; Wolfgang Wieser; Raphael André; Tom Pfeiffer; Christoph M. Eigenwillig; Robert Huber
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Paper Abstract

We demonstrate the acquisition of densely sampled wide-field 3D OCT datasets of the human retina in 0.3s. This performance is achieved with a multi-MHz Fourier domain mode-locked (FDML) laser source operating at 1050nm. A two-beam setup doubles the 3.35MHz laser sweep rate to 6.7MHz, which is 16x faster than results achieved with any non-FDML source used for retinal OCT. We discuss two main benefits of these high line rates: First, large datasets over an ultra-wide field of view can be acquired with a low probability of distortions. Second, even if eye movements occur, now the scan rate is high enough to directly correct even the fastest saccades without loss of information.

Paper Details

Date Published: 17 February 2012
PDF: 6 pages
Proc. SPIE 8213, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVI, 82131E (17 February 2012); doi: 10.1117/12.908798
Show Author Affiliations
Thomas Klein, Ludwig-Maximilians-Univ. München (Germany)
Wolfgang Wieser, Ludwig-Maximilians-Univ. München (Germany)
Raphael André, Ludwig-Maximilians-Univ. München (Germany)
Tom Pfeiffer, Ludwig-Maximilians-Univ. München (Germany)
Christoph M. Eigenwillig, Ludwig-Maximilians-Univ. München (Germany)
Robert Huber, Ludwig-Maximilians-Univ. München (Germany)

Published in SPIE Proceedings Vol. 8213:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVI
Joseph A. Izatt; James G. Fujimoto; Valery V. Tuchin, Editor(s)

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