A frequency-encoded frequency domain near-infrared spectroscopy (FD-NIRS) oximeter with two wavelengths has been constructed. The system digitizes the 67.5MHz and 75MHz waveforms using a high speed (180MSPS) 16-bit analog to digital converter.
© 2012 OSA
(170.0110) Medical optics and biotechnology : Imaging systems
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.3890) Medical optics and biotechnology : Medical optics instrumentation
B. Zimmermann, J. Selb, S. Carp, Q. Fang, J. Stadtmiller, R. Dewsnap, R. Altman, and D. Boas, "A frequency domain near-infrared spectroscopy oximeter using high-speed, direct analog to digital conversion," in Biomedical Optics and 3-D Imaging, OSA Technical Digest (Optical Society of America, 2012), paper BSu3A.78.
References are not available for this paper.