Title page for etd-0829115-103938


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URN etd-0829115-103938
Author Chun-Nien Liu
Author's Email Address No Public.
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Department Electro-Optical Engineering
Year 2015
Semester 1
Degree Ph.D.
Type of Document
Language zh-TW.Big5 Chinese
Title The Fabrication and Characterization Study of Broadband and High Resolution of Ce/Cr-Doped Crystal Fiber for Optical Coherence Tomography Light Sources
Date of Defense 2015-09-19
Page Count 98
Keyword
  • Biomedical optical imaging
  • Fiber design and fabrication
  • Optical coherence tomography
  • Ce/Cr-doped fiber
  • Abstract We report the fabrication and characteristics of Ce-doped fibers (CeDFs) and Cr-doped fibers (CDFs) based on drawing tower technique. The CeDFs show an emission from 480 to 650 nm, 600 to 800 nm, and 700 to 950 nm with a power density of 21.1 nW/nm, 79.1 nW/nm and 63.8 nW/nm, respectively. The CDFs exhibit an emission from 975 to 1300 nm with a power density of 27.3 nW/nm which was dominated by Cr4+ near-Gaussian ASE spectrum. For fiber-based OCT system, the measured broadband emission of CeDFs and CDFs showed four different high axial resolutions of 2.3, 1.8, 1.9, and 3-┬Ám in air. Furthermore, fiber-based OCT system with the broadband fluorescence sources spanning the visible and near infrared regions provides the deepest penetration in biomedical specimens. A number of clinical applications have been demonstrated in a widely diverse range of areas such as ophthalmology, dermatology, dentistry, cardiology, and gastrointestinal pathologies. Fiber-based OCT system is featured with lightweight, mini size, easy assembly and can be integrated with other measurement systems to provide high-contrast and high quality imaging applications. In this study, the initial success in the development of the CeDFs and CDFs indicates that the fabricated fibers may be widely applicable as a new generation broadband source for the use in various spectroscopic OCT applications. Therefore, the proposed broadband and high axial resolution light source has a great potential for future OCT source applications, such as biological research and industrial inspection.
    Advisory Committee
  • Gong-Ru Lin - chair
  • Tien-Tsorng Shih - co-chair
  • San-Liang Lee - co-chair
  • Hao-Chung Kuo - co-chair
  • Wood-Hi Cheng - co-chair
  • Nan-Kuang Chen - co-chair
  • Sheng-Lung Huang - co-chair
  • Jian-Jang Huang - co-chair
  • Chin-Ping Yu - advisor
  • Files
  • etd-0829115-103938.pdf
  • Indicate in-campus at 3 year and off-campus access at 4 year.
    Date of Submission 2015-09-29

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