Abstract

We describe high-speed Fourier domain optical coherence tomography (OCT) using optical demultiplexers (ODs) for spectral dispersion. The OD enables separation of a narrow spectral band of 14GHz (0.11nm) from a broadband incident light at 256 different frequencies in 25.0GHz intervals centered at 192.2THz (1559.8nm). OCT imaging of 60,000,000 axial scans per second was achieved through parallel signal acquisition using 256 balanced photoreceivers to simultaneously detect all the output signals from the ODs in a Fourier domain OCT system. OCT imaging at a 16kHz frame rate, 1100 A-lines per frame, 3mm depth range, and 23μm resolution was demonstrated using a resonant scanner for lateral scanning.

© 2008 Optical Society of America

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