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Schematic of SD TL-uOCT. CM: fiber-optic collimator; FPC: fiber polarization controller; D: BK7 wedge prism pair; RSOD: grating-lens-based rapid optical delay for dispersion compensation; G: servo mirror; Obj: achromatic lens (f 10mm∕NA 0.25); τ: delay trigger for TL-uOCT; L1, L2: achromatic lens group for field correction.
