Extending the Effective Ranging Depth of Spectral Domain Optical Coherence Tomography by Spatial Frequency Domain Multiplexing

We present a spatial frequency domain multiplexing method for extending the imaging depth range of a spectral domain optical coherence tomography (SDOCT) system without any expensive device. This method uses two galvo scanners with different pivot-offset distances in two independent reference arms f...

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Main Authors: Tong Wu, Qingqing Wang, Youwen Liu, Jiming Wang, Chongjun He, Xiaorong Gu
Format: Article
Language:English
Published: MDPI AG 2016-11-01
Series:Applied Sciences
Subjects:
Online Access:http://www.mdpi.com/2076-3417/6/11/360
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author Tong Wu
Qingqing Wang
Youwen Liu
Jiming Wang
Chongjun He
Xiaorong Gu
author_facet Tong Wu
Qingqing Wang
Youwen Liu
Jiming Wang
Chongjun He
Xiaorong Gu
author_sort Tong Wu
collection DOAJ
description We present a spatial frequency domain multiplexing method for extending the imaging depth range of a spectral domain optical coherence tomography (SDOCT) system without any expensive device. This method uses two galvo scanners with different pivot-offset distances in two independent reference arms for spatial frequency modulation and multiplexing. The spatial frequency contents corresponding to different depth regions of the sample can be shifted to different frequency bands. The spatial frequency domain multiplexing SDOCT system provides an approximately 1.9-fold increase in the effective ranging depth compared with that of a conventional full-range SDOCT system. The reconstructed images of phantom and biological tissue demonstrate the expected increase in ranging depth. The parameters choice criterion for this method is discussed.
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spelling doaj.art-3479d725e5a44d758485aad7831382612022-12-21T21:09:33ZengMDPI AGApplied Sciences2076-34172016-11-0161136010.3390/app6110360app6110360Extending the Effective Ranging Depth of Spectral Domain Optical Coherence Tomography by Spatial Frequency Domain MultiplexingTong Wu0Qingqing Wang1Youwen Liu2Jiming Wang3Chongjun He4Xiaorong Gu5Department of Applied Physics, College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Applied Physics, College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Applied Physics, College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Applied Physics, College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Applied Physics, College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Applied Physics, College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaWe present a spatial frequency domain multiplexing method for extending the imaging depth range of a spectral domain optical coherence tomography (SDOCT) system without any expensive device. This method uses two galvo scanners with different pivot-offset distances in two independent reference arms for spatial frequency modulation and multiplexing. The spatial frequency contents corresponding to different depth regions of the sample can be shifted to different frequency bands. The spatial frequency domain multiplexing SDOCT system provides an approximately 1.9-fold increase in the effective ranging depth compared with that of a conventional full-range SDOCT system. The reconstructed images of phantom and biological tissue demonstrate the expected increase in ranging depth. The parameters choice criterion for this method is discussed.http://www.mdpi.com/2076-3417/6/11/360fiber optics imagingmedical and biological imagingoptical coherence tomography
spellingShingle Tong Wu
Qingqing Wang
Youwen Liu
Jiming Wang
Chongjun He
Xiaorong Gu
Extending the Effective Ranging Depth of Spectral Domain Optical Coherence Tomography by Spatial Frequency Domain Multiplexing
Applied Sciences
fiber optics imaging
medical and biological imaging
optical coherence tomography
title Extending the Effective Ranging Depth of Spectral Domain Optical Coherence Tomography by Spatial Frequency Domain Multiplexing
title_full Extending the Effective Ranging Depth of Spectral Domain Optical Coherence Tomography by Spatial Frequency Domain Multiplexing
title_fullStr Extending the Effective Ranging Depth of Spectral Domain Optical Coherence Tomography by Spatial Frequency Domain Multiplexing
title_full_unstemmed Extending the Effective Ranging Depth of Spectral Domain Optical Coherence Tomography by Spatial Frequency Domain Multiplexing
title_short Extending the Effective Ranging Depth of Spectral Domain Optical Coherence Tomography by Spatial Frequency Domain Multiplexing
title_sort extending the effective ranging depth of spectral domain optical coherence tomography by spatial frequency domain multiplexing
topic fiber optics imaging
medical and biological imaging
optical coherence tomography
url http://www.mdpi.com/2076-3417/6/11/360
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