High-speed, high-resolution optical coherence tomography retinal imaging with a frequency-swept laser at 850 nm |
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| Authors: | Srinivasan V J Huber R Gorczynska I Fujimoto J G Jiang J Y Reisen P Cable A E |
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| Institution: | Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. vjsriniv@mit.edu |
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| 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. |
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