Correction: Live video rate volumetric OCT imaging of the retina with multi-MHz A-scan rates
Fig 2
Interferometer design including sample arm.
DC: dispersion compensation. BPD: balanced photodetector, recal: recalibration arm, reference: reference arm, PC: polarization controller, X-mirror: x-axis resonant scanner, Y-mirror: Y-axis galvanometer scanner, L1 and L2: lens group 1 and 2, DM: dichroic mirror, FT: fixation target (attenuated LED projector).