Equidistant Recording of the Spectral Components in Ultra-Wideband Spectral-Domain Optical Coherence Tomography

We develop an effective method for reducing nonequidistance when recording the spectral components of an interference signal in ultra-wideband spectral-domain optical coherence tomography. For this purpose, a corrector consisting of two identical prisms is used in a diffraction-grating spectrometer. The corrector rotation with respect to the diffraction-grating plane and a variation in the angle between the corrector elements allow one to adjust the equidistant spatial distribution of the spectral components in the photoreceiver array. It is shown experimentally that the developed method substitutes digital correction and leads to a significant reduction of the computational load in the optical coherence tomography device.

[1]  Zhihua Ding,et al.  Spectral phase based k-domain interpolation for uniform sampling in swept-source optical coherence tomography. , 2011, Optics express.

[2]  Jin U. Kang,et al.  Graphics processing unit-accelerated real-time compressive sensing spectral domain optical coherence tomography , 2015, Photonics West - Biomedical Optics.

[3]  Eun Seong Lee,et al.  Ultrahigh-Resolution Spectral Domain Optical Coherence Tomography Based on a Linear-Wavenumber Spectrometer , 2015 .

[4]  Zhilin Hu,et al.  Fourier domain optical coherence tomography with a linear-in-wavenumber spectrometer. , 2007, Optics letters.

[5]  Tomasz S Tkaczyk,et al.  Compound prism design principles, III: linear-in-wavenumber and optical coherence tomography prisms. , 2011, Applied optics.

[6]  Adrian Gh. Podoleanu,et al.  Direct electronic linearization for camera based spectral domain optical coherence tomography , 2013, Photonics West - Biomedical Optics.

[7]  Grigory V. Gelikonov,et al.  Linear-wavenumber spectrometer for high-speed spectral-domain optical coherence tomography , 2009 .

[8]  Changhuei Yang,et al.  Sensitivity advantage of swept source and Fourier domain optical coherence tomography. , 2003, Optics express.

[9]  Daguang Xu,et al.  Compressive sensing with dispersion compensation on non-linear wavenumber sampled spectral domain optical coherence tomography. , 2013, Biomedical optics express.

[10]  S. Yun,et al.  High-speed optical frequency-domain imaging. , 2003, Optics express.

[11]  A. Fercher,et al.  In vivo human retinal imaging by Fourier domain optical coherence tomography. , 2002, Journal of biomedical optics.

[12]  Kang Zhang,et al.  Real-time 4D signal processing and visualization using graphics processing unit on a regular nonlinear-k Fourier-domain OCT system , 2010, Optics express.

[13]  Grigory V. Gelikonov,et al.  Linear wave-number spectrometer for spectral domain optical coherence tomography , 2008, SPIE BiOS.

[14]  Ning Zhang,et al.  Compressed sensing with linear-in-wavenumber sampling in spectral-domain optical coherence tomography. , 2012, Optics letters.

[15]  Grigory V. Gelikonov,et al.  Linear in-wavenumber optical spectrum registration in SD-OCT , 2012, Photonics West - Biomedical Optics.

[16]  Jeehyun Kim,et al.  Full-range k-domain linearization in spectral-domain optical coherence tomography. , 2011, Applied optics.

[17]  W. Traub.  Constant-dispersion grism spectrometer for channeled spectra , 1990 .

[18]  Grigory V Gelikonov,et al.  Hybrid M-mode-like OCT imaging of three-dimensional microvasculature in vivo using reference-free processing of complex valued B-scans. , 2014, Optics letters.