Fig. 2: Experimental layout.
From: All-fiber high-speed image detection enabled by deep learning
a Schematic of the experimental setup. b Flow of the reconstruction process from waveforms to images. c Schematic of the fiber-end ball, the side-pump fiber coupler, and the flow of illumination light (orange arrows) and signal light (red arrows). d Structures of the side-pump coupler and triple-cladding fiber probe, where illumination light (orange arrows) is coupled into and transmitted through the cladding of the fiber, while signal light (red arrows) is collected and transmitted through the fiber core in the opposite direction. The cross section of this coupling region is also shown. The triple-cladding fiber consists of the fiber core (red), first cladding layer (blue), and second cladding layer (orange). e Micrograph of the fiber-end ball. Scale bar: 500 μm.
