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Based on the phase information in time domain of a Mach-Zehnder interferometer (MZI), a method of calibrating the wavenumber of the source is proposed. Cross-correlation of wrapped phase in time-domain of the MZI is adopted to determine drifts among axial-lines. Owing to non-strictly periodic characteristics of wrapped phase in time-domain of the MZI, the determinable range of shift is unlimited. Synchronization of signals in time domain is then performed to correct their corresponding shifts. The obtained results demonstrate that it is feasible to realize phase measurement with high precision even under unstable swept source for the optical coherence tomography system.
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Keywords:
- swept source /
- wavenumber calibration /
- cross-correlation /
- phase measurement
[1] Huang D, Swanson E A, Lin C P, Schuman J S, Stinson W G, Chang W, Hee M R, Flotte T, Gregory K, Puliafito C A, Fujimoto J G 1991 Science 254 1178
[2] Wang R K, Nuttall A L 2010 J. Biomed. Opt. 15 56005
[3] Manapuram R K, Manne V G R, Larin K V 2009 J. Appl. Phys. 105 102040
[4] Moore E D, Mcleod R R 2011 Opt. Express 19 8117
[5] Yan Y Z, Ding Z H, Wang L, Shen Y 2013 Acta Phys. Sin. 62 164204 (in Chinese) [颜扬治, 丁志华, 王玲, 沈毅 2013 62 164204]
[6] Adler D C, Huber R, Fujimoto J G 2007 Opt. Lett. 32 626
[7] Vakoc B, Yun S, de Boer J, Tearney G, Bouma B 2005 Opt. Express 13 5483
[8] Kuranov R V, Mcelroy A B, Kemp N, Baranov S, Taber J, Feldman M D, Milner T E 2010 IEEE Photonic. Tech. L. 22 1524
[9] Braaf B, Vermeer K A, Sicam V A D P, van Zeeburg E, van Meurs J C, de Boer J F 2011 Opt. Express 19 20886
[10] 10 Liu G, Tan O, Gao S S, Pechauer A D, Lee B, Lu C D, Fujimoto J G, Huang D 2015 Opt. Express 23 9824
[11] Bao W, Ding Z H, Wang C, Mei S T 2013 Acta Phys. Sin. 62 114202 (in Chinese) [鲍文, 丁志华, 王川, 梅胜涛 2013 62 114202]
[12] Wu T, Ding Z H, Wang L, Chen M H 2011 Opt. Express 19 18430
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[1] Huang D, Swanson E A, Lin C P, Schuman J S, Stinson W G, Chang W, Hee M R, Flotte T, Gregory K, Puliafito C A, Fujimoto J G 1991 Science 254 1178
[2] Wang R K, Nuttall A L 2010 J. Biomed. Opt. 15 56005
[3] Manapuram R K, Manne V G R, Larin K V 2009 J. Appl. Phys. 105 102040
[4] Moore E D, Mcleod R R 2011 Opt. Express 19 8117
[5] Yan Y Z, Ding Z H, Wang L, Shen Y 2013 Acta Phys. Sin. 62 164204 (in Chinese) [颜扬治, 丁志华, 王玲, 沈毅 2013 62 164204]
[6] Adler D C, Huber R, Fujimoto J G 2007 Opt. Lett. 32 626
[7] Vakoc B, Yun S, de Boer J, Tearney G, Bouma B 2005 Opt. Express 13 5483
[8] Kuranov R V, Mcelroy A B, Kemp N, Baranov S, Taber J, Feldman M D, Milner T E 2010 IEEE Photonic. Tech. L. 22 1524
[9] Braaf B, Vermeer K A, Sicam V A D P, van Zeeburg E, van Meurs J C, de Boer J F 2011 Opt. Express 19 20886
[10] 10 Liu G, Tan O, Gao S S, Pechauer A D, Lee B, Lu C D, Fujimoto J G, Huang D 2015 Opt. Express 23 9824
[11] Bao W, Ding Z H, Wang C, Mei S T 2013 Acta Phys. Sin. 62 114202 (in Chinese) [鲍文, 丁志华, 王川, 梅胜涛 2013 62 114202]
[12] Wu T, Ding Z H, Wang L, Chen M H 2011 Opt. Express 19 18430
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