Chinese Journal of Lasers, Volume. 41, Issue 2, 204001(2014)
Full-Range Fourier Domain Doppler Optical Coherence Tomography Based on Sinusoidal Phase Modulation
A full-range Fourier domain Doppler optical coherence tomography (DOCT) system based on sinusoidal phase-modulating method is developed. The system combines Doppler detection with complex Fourier domain OCT. Full-range OCT and Doppler images are achieved using the complex spectral interferogram, which is retrieved based on the sinusoidal phase modulation B-M scanning and the combination of Fourier transform analysis and bandpass filter method. With the system, the depth imaging range is doubled and high velocity sensitivity is available in the whole B-scan image. Full-range OCT and full-range Doppler images of a flow phantom are achieved with the proposed system. The minimum detectable velocity of the system is investigated, which is 5.35 μm/s.
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Nan Nan, Bu Peng, Li Zhongliang, Guo Xin, Wang Xiangzhao. Full-Range Fourier Domain Doppler Optical Coherence Tomography Based on Sinusoidal Phase Modulation[J]. Chinese Journal of Lasers, 2014, 41(2): 204001
Category: biomedical photonics and laser medicine
Received: Jul. 15, 2013
Accepted: --
Published Online: Feb. 27, 2014
The Author Email: Nan Nan (nan8219@126.com)