Fig. 1. Schematic of a Michelson interferometer used in OCT^[22]

Fig. 2. LF-SD-OCT system

Fig. 3. Image reconstruction flow chart

Fig. 4. Comparison before and after resampling and dispersion compensation. (a) Comparison of axial resolution; (b) Comparison of system roll down

Fig. 5. Subsection dispersion compensation flow chart

Fig. 6. Diagram of dispersion compensation coefficient with depth. (a) Quadratic coefficient; (b) Cubic coefficient

Fig. 7. Comparison of system roll-down before (blue) and after (red) targeted dispersion compensation

Fig. 8. Comparison of system roll-down before (blue) and after (red) subsection dispersion compensation

Fig. 9. Comparison of imaging results before and after segmented dispersion compensation. (a) Δz=1.25 mm; (b) Δz=1.65 mm; (c) Δz=2.05 mm; (d) Δz=2.45 mm

Fig. 10. Comparison of results before and after deconvolution

Fig. 11. Flat mirror sample imaging results (Δz=0.375 mm). (a) Flat mirror sample imaging results; (b) Axial resolution of focus line center position

Fig. 12. Scotch tape imaging results. (a) Image after single coefficient dispersion compensation; (b) Image after subsection dispersion compensation

Fig. 13. Scotch tape imaging results after deconvolution

Fig. 14. Fruits sample imaging results. (a) Apple skin; (b) Pear skin; (c) Orange saccule