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Proceedings Paper

Calibration protocol for Fourier-domain OCT using optical fiber gratings
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Paper Abstract

We present a calibration protocol to get the alignment factors of a custom-made spectrometer and the nonlinear fitting function between the measured CCD pixel domain and the wavelength domain to apply the Fourier-domain optical coherence tomography (FD-OCT) using optical fiber gratings. We have used 5 different center wavelength gratings covered the broadband source spectral range with a narrow spectral bandwidth (<0.05 nm) and the same reflectivity (>92 %) to calibrate and align the custom-made spectrometer. The implemented SD-OCT system following the proposed protocol showed the alignment factors as 44.37o incident angle, 53.11o diffraction angle, and 70.0 mm focal length. The spectral resolution of 0.187 nm was recalculated from the alignment factors.

Paper Details

Date Published: 22 February 2010
PDF: 7 pages
Proc. SPIE 7555, Advanced Biomedical and Clinical Diagnostic Systems VIII, 75551M (22 February 2010); doi: 10.1117/12.842905
Show Author Affiliations
Tae Joong Eom, Gwangju Institute of Science and Technology (Korea, Republic of)
Bong-Ahn Yu, Gwangju Institute of Science and Technology (Korea, Republic of)
Woojin Shin, Gwangju Institute of Science and Technology (Korea, Republic of)
Yeung Lak Lee, Gwangju Institute of Science and Technology (Korea, Republic of)
Chang-Seok Kim, Pusan National Univ. (Korea, Republic of)
Yeh-Chan Ahn, Univ. of California, Irvine (United States)
Zhongping Chen, Univ. of California, Irvine (United States)


Published in SPIE Proceedings Vol. 7555:
Advanced Biomedical and Clinical Diagnostic Systems VIII
Tuan Vo-Dinh; Warren S. Grundfest; Anita Mahadevan-Jansen, Editor(s)

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