Open AccessCompressive fluorescence imaging using a multi-core fiber and spatially dependent scattering
Author(s) -
Jaewook Shin,
Bryan T. Bosworth,
Mark A. Foster
Publication year - 2016
Publication title -
optics letters/optics index
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.42.000109
Subject(s) - optics , speckle pattern , endomicroscopy , materials science , core (optical fiber) , diffuser (optics) , scattering , optical fiber , light scattering , fiber , photonic crystal fiber , physics , light source , confocal , composite material
We demonstrate imaging using a multi-core fiber with a scattering distal tip and compressed sensing signal acquisition. We illuminate objects with randomly structured speckle patterns generated by a coherent light source separately coupled through each fiber core to a ground glass diffuser at the distal end. Using the characterized speckle patterns and the total light collected from the object, we computationally recover pixelation-free object images with up to a seven times higher space-bandwidth product than the number of cores. The proposed imaging system is insensitive to bending of the fiber and extremely compact, making it suitable for minimally invasive endomicroscopy.