• Acta Optica Sinica
  • Vol. 39, Issue 11, 1111002 (2019)
Hongqin Chen1, Nan Nan2, Xi Zhang2, Ziyang Chen1, Jixiong Pu1、*, Sasaki Osami1、**, and Xiangzhao Wang2
Author Affiliations
  • 1Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, Fujian 361021, China
  • 2Laboratory of Information Optics and Optoelectronic Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
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    DOI: 10.3788/AOS201939.1111002 Cite this Article Set citation alerts
    Hongqin Chen, Nan Nan, Xi Zhang, Ziyang Chen, Jixiong Pu, Sasaki Osami, Xiangzhao Wang. Complex Frequency Domain Doppler Optical Coherence Tomography Based on Phase Difference Resolved Technology[J]. Acta Optica Sinica, 2019, 39(11): 1111002 Copy Citation Text show less

    Abstract

    The full-range complex frequency domain optical coherence tomography based on sinusoidal phase modulation has the advantages of good effect on suppression of the mirror image and high velocity sensitivity with the highest signal-to-noise ratio (SNR) near the zero-path difference position. It has been widely utilized in the field of Doppler imaging. However, this technology is not suitable for the sample with high-speed motion affected by phase demodulation. In this paper, we present a novel approach, i.e., the complex frequency domain Doppler optical coherence tomography, based on phase difference resolved technology. After obtaining the interference tomography signal by Fourier transform of two-dimensional interference spectrum signal, and using the differential phase of the adjacent tomography signal to reconstruct the complex tomography signal, we obtain the full-range tomography images and Doppler images after sinusoidal phase demodulation. It is shown from the simulation and experimental results that this technique can reduce the broadening of the signal spectrum due to high-speed motion, so that more accurate Doppler phase shift and larger velocity detection range can be obtained.
    Hongqin Chen, Nan Nan, Xi Zhang, Ziyang Chen, Jixiong Pu, Sasaki Osami, Xiangzhao Wang. Complex Frequency Domain Doppler Optical Coherence Tomography Based on Phase Difference Resolved Technology[J]. Acta Optica Sinica, 2019, 39(11): 1111002
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