Open AccessSpectrometer calibration for spectroscopic Fourier domain optical coherence tomography
Author(s) -
Maciej Szkulmowski,
Szymon Tamborski,
Maciej Wojtkowski
Publication year - 2016
Publication title -
biomedical optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.7.005042
Subject(s) - optics , optical coherence tomography , spectrometer , fourier transform , doppler effect , calibration , physics , wavelength , frequency domain , coherence (philosophical gambling strategy) , wavenumber , time domain , computer science , quantum mechanics , astronomy , computer vision
We propose a simple and robust procedure for Fourier domain optical coherence tomography (FdOCT) that allows to linearize the detected FdOCT spectra to wavenumber domain and, at the same time, to determine the wavelength of light for each point of detected spectrum. We show that in this approach it is possible to use any measurable physical quantity that has linear dependency on wavenumber and can be extracted from spectral fringes. The actual values of the measured quantity have no importance for the algorithm and do not need to be known at any stage of the procedure. As example we calibrate a spectral OCT spectrometer using Doppler frequency. The technique of spectral calibration can be in principle adapted to of all kind of Fourier domain OCT devices.