Figure 2. Fiber-optic probes for catheter/endoscope, biopsy needle, and laparoscope. (A) Schematic of the distal end of an OCT probe. (B) Photograph of an intravascular imaging catheter (0.4 mm in diameter). (C) Schematic of a modified core-needle biopsy device with a catheter-based OCT probe (figures are adapted from reference²⁵ with permission) and photographs of modified tip. (D) The photograph of a custom laparoscopic OCT probe for imaging human ovary. Figures are adapted from reference 21 with permission.