High-speed 1310 nm-band spectral domain optical coherence tomography at 184,000 lines per second.

We propose a useful method to boost the imaging speed for spectral domain optical coherence tomography (SDOCT) by multiplying a number of high-speed spectrometers used in the system with selective precise control of data-recording and data-reading phases for spectral cameras employed in each spectrometer. To demonstrate the proposed method, we use two spectrometers built in a 1310 nm-band SDOCT system, each equipped with a high-speed InGaAs line-scan camera capable of 92-kHz line-scan rate, to achieve an unprecedented imaging speed at 184,000 lines/s. We validate the multiplied imaging speed by measuring Doppler-induced phase shift in the spectrograms using a flow phantom.

[1]  Ruikang K. Wang,et al.  Full range complex spectral domain optical coherence tomography for volumetric imaging at 47 000 A-scans per second , 2010, Journal of optics.

[2]  A. Fercher,et al.  Performance of fourier domain vs. time domain optical coherence tomography. , 2003, Optics express.

[3]  S. Yun,et al.  High-speed wavelength-swept semiconductor laser with a polygon-scanner-based wavelength filter. , 2003, Optics letters.

[4]  Zhao Ren,et al.  High-speed, high-resolution Fourier-domain optical coherence tomography system for retinal imaging in the 1060 nm wavelength region. , 2008, Optics letters.

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

[6]  High-Quality 3-D Imaging withMultimegahertz OCT , 2010 .

[7]  B. Bouma,et al.  Improved signal-to-noise ratio in spectral-domain compared with time-domain optical coherence tomography. , 2003, Optics letters.

[8]  Maciej Wojtkowski,et al.  Ophthalmic imaging by spectral optical coherence tomography. , 2004, American journal of ophthalmology.

[9]  J. Duker,et al.  Ultrahigh speed 1050nm swept source/Fourier domain OCT retinal and anterior segment imaging at 100,000 to 400,000 axial scans per second. , 2010, Optics express.

[10]  Wolfgang Wieser,et al.  Multi-megahertz OCT: High quality 3D imaging at 20 million A-scans and 4.5 GVoxels per second. , 2010, Optics express.

[11]  J. Fujimoto,et al.  Ultrahigh speed spectral / Fourier domain OCT ophthalmic imaging at 70,000 to 312,500 axial scans per second. , 2008, Optics express.

[12]  J. Fujimoto,et al.  Fourier Domain Mode Locking (FDML): A new laser operating regime and applications for optical coherence tomography. , 2006, Optics express.