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. 2020 Jun 30;11(7):4037–4051. doi: 10.1364/BOE.395843

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© 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

© 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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Fig. 1. — The system characteristics. (a) Schematic of the vis-OCTA system. SC: supercontinuum source; DM: dichroic mirror; BD: beam dump; PBS: polarization beam splitter; EF: edge filter; M: mirror; PC: polarization controller; WDM: wavelength division and multiplexer; FC: fiber coupler; CL: collimating lens; TL: tunable lens; ND: neutral density filter; DC: dispersion controller. (b) The wavelength selection of the spectrometer. Simulated scattering signal from the oxygenated and deoxygenated blood. (c) The measured light source spectrum. (d) System roll-off characterization.