Szkulmowski Maciej, Tamborski Szymon, Wojtkowski Maciej
Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland.
Biomed Opt Express. 2016 Nov 9;7(12):5042-5054. doi: 10.1364/BOE.7.005042. eCollection 2016 Dec 1.
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.
我们提出了一种用于傅里叶域光学相干断层扫描（FdOCT）的简单且稳健的方法，该方法能够将检测到的FdOCT光谱线性化到波数域，同时确定检测光谱各点的光波长。我们表明，在这种方法中，可以使用任何与波数具有线性相关性且可从光谱条纹中提取的可测量物理量。测量量的实际值对算法并不重要，并且在该过程的任何阶段都无需知道。作为示例，我们使用多普勒频率校准了一台光谱OCT光谱仪。光谱校准技术原则上可适用于所有类型的傅里叶域OCT设备。
