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Opt Lett. 2007 Feb 15;32(4):361-3.

High-speed, high-resolution optical coherence tomography retinal imaging with a frequency-swept laser at 850 nm.

Author information

  • 1Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. vjsriniv@mit.edu

Abstract

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

PMID:
17356653
[PubMed - indexed for MEDLINE]
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