PMID- 21456856 OWN - NLM STAT- MEDLINE DCOM- 20110809 LR - 20211020 IS - 1560-2281 (Electronic) IS - 1083-3668 (Print) IS - 1083-3668 (Linking) VI - 16 IP - 3 DP - 2011 Mar TI - Calibration and characterization protocol for spectral-domain optical coherence tomography using fiber Bragg gratings. PG - 030501 LID - 10.1117/1.3552602 [doi] LID - 030501 AB - We present a calibration protocol to obtain 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 to the spectral-domain optical coherence tomography (SD-OCT) using fiber Bragg gratings. We have used five gratings with different center wavelengths covering the broadband source spectral range. All have 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 44.37 deg incident angle, 53.11 deg diffraction angle, and 70.0-mm focal length. The spectral resolution of 0.187 nm was recalculated from the alignment factors. FAU - Eom, Tae Joong AU - Eom TJ FAU - Ahn, Yeh-Chan AU - Ahn YC FAU - Kim, Chang-Seok AU - Kim CS FAU - Chen, Zhongping AU - Chen Z LA - eng GR - EB-10090/EB/NIBIB NIH HHS/United States GR - R01 EB010090/EB/NIBIB NIH HHS/United States GR - P41 RR001192-29/RR/NCRR NIH HHS/United States GR - P41 RR001192/RR/NCRR NIH HHS/United States GR - EB-00293/EB/NIBIB NIH HHS/United States GR - R01 EB000293/EB/NIBIB NIH HHS/United States GR - P41 RR001192-31/RR/NCRR NIH HHS/United States GR - RR-01192/RR/NCRR NIH HHS/United States GR - P41 RR001192-30/RR/NCRR NIH HHS/United States PT - Letter PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PL - United States TA - J Biomed Opt JT - Journal of biomedical optics JID - 9605853 SB - IM MH - Calibration MH - Equipment Design MH - Fourier Analysis MH - Optical Phenomena MH - *Tomography, Optical Coherence/instrumentation/methods/statistics & numerical data PMC - PMC3188603 EDAT- 2011/04/05 06:00 MHDA- 2011/08/10 06:00 PMCR- 2011/03/11 CRDT- 2011/04/05 06:00 PHST- 2011/04/05 06:00 [entrez] PHST- 2011/04/05 06:00 [pubmed] PHST- 2011/08/10 06:00 [medline] PHST- 2011/03/11 00:00 [pmc-release] AID - 007103JBO [pii] AID - 10.1117/1.3552602 [doi] PST - ppublish SO - J Biomed Opt. 2011 Mar;16(3):030501. doi: 10.1117/1.3552602.