Fig. 1.

Schematic layout of the FDA FDML AO system for multimodal and multifunctional retinal imaging flattened for clarity. The swept source OCT uses a typical Mach–Zehnder interferometer design which consists of the source, sample, reference, and detection arms. The OCT reference arm consists of a group of plano mirrors and a retroreflector to match the double-pass optical path length (OPL) of the sample arm. Key: AOM: acousto-optic modulator; APD: avalanche photodiode; BD: balanced detector; BS: beam splitter; DM: deformable mirror; G: galvanometer; I: iris; LP: long-pass dichroic filter; P: pinhole; PC: polarization controller; PM: plano mirror; RS: resonant scanner; S: spherical mirror; SHWS: Shack-Hartmann wavefront sensor; SP: short-pass dichroic filter; SC: supercontinuum.