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Optical Engineering

High-speed time-domain optical coherence tomography with an imaging speed of ten frames per second with 2000 A-scan
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Paper Abstract

We report on a high-speed time-domain optical coherence tomography (TD-OCT) technology that is capable of imaging 10 fps with 2000 A-scan. A duplex scanning optical delay line that is driven by a 1-kHz sinusoidal wave function was implemented and characterized. The reference and sample arms in a Michelson interferometer were simultaneously scanned using two identical piezoelectric transducers (PZTs). We adopted a sinusoidal wave function with constant voltages as the input functions for the PZTs. A recalibration of the measurement depth was necessary for the sinusoidal wave function operation. A recalibration with a spatial transformation was performed on the A-scan. We achieved an A-scan speed of 6 m/s. To the best our knowledge, this is the highest speed achieved in conventional TD-OCT systems to date.

Paper Details

Date Published: 1 May 2010
PDF: 6 pages
Opt. Eng. 49(5) 055601 doi: 10.1117/1.3425659
Published in: Optical Engineering Volume 49, Issue 5
Show Author Affiliations
Young-Kwan Kim, Kyung Hee Univ. (Korea, Republic of)
Yong Pyung Kim, Kyung Hee Univ. (Korea, Republic of)

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