Figure 1.

Photos and schematic of an OCT imaging system with a handheld probe. (A) Photo of the portable cart with touch screen display; (B) photo of the handheld imaging probe compatible with otoscope ear specula; (C) schematic of OCT system with handheld imaging probe. OBJ, objective; DM, dichroic mirror; MEMS, micro-electro-mechanical-system mirror; C, collimator; CCD, charge-coupled device camera; PC, polarization controller; 50/50, two-by-two fiber coupler; NDF, neutral density filter; DC, dispersion compensation; L, lens; M, mirror; DG: diffraction grating; LSC, line-scan camera; OCT, optical coherence tomography.