Abstract

High-speed, high-resolution optical coherence tomography (OCT) imaging of the human retina is demonstrated using a frequency-swept laser at 850nm. A compact external cavity semiconductor laser design, optimized for swept-source ophthalmic OCT, is described. The laser enables an effective 16kHz sweep rate with >10mm coherence length and a tuning range of 35nm full width at half-maximum, yielding an axial resolution of <7μm in tissue.

© 2007 Optical Society of America

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