Abstract
Coherent fiber bundles with their small diameter (less than 300 microns) pave the way towards ultra-thin holographic endoscopes. However, holographic imaging through CFBs suffers from random phase distortions due to the light transport through the fiber cores. We use two-wavelength digital holography, exploiting spectral correlations to eliminate the detrimental effects introduced by the fibre bundle. We use two-photon-polymerization to print our micro optics directly onto both the imaging fiber bundle and illumination fiber. Using an off-axis holographic setup and two lasers we are able to perform single-shot 3D holographic shape measurement.
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