Figure 24.

Scanning fiber endoscopy (SFE) for wide-field multiplexed fluorescent imaging. (a) Schematic diagram of the SFE with the scanning illumination fiber moving in the spiral scan pattern, a magnified view of the coaxial scanner design is shown, which consists of the central single-mode optical fiber that is cantilevered from the tip of a tubular piezoelectric actuator, held by a mounting collar. (b) Photograph of the OD 1 mm catheter endoscope scanhead (Reproduced with permission from SPIE [124]).