TY - JOUR
T1 - Extended field-of-view in a lensless endoscope using an aperiodic multicore fiber
AU - Sivankutty, Siddharth
AU - Tsvirkun, Viktor
AU - Bouwmans, Géraud
AU - Kogan, Dani
AU - Oron, Dan
AU - Andresen, Esben Ravn
AU - Rigneault, Hervé
N1 - Funding Information:
Agence Nationale de la Recherche (ANR) (ANR 11-INSB-0006, ANR-10-INSB-04-01, ANR-11EQPX-0017, ANR-14-CE17-0004-01); Aix-Marseille Universit? (ANR-11-IDEX-0001-02); Universit? Lille 1 (ANR-11-LABX-0007); Institut National de la Sant? et de la Recherche M?dicale (Inserm) (PC201508); SATT Sud-Est GDC Lensless endoscope; CNRS-Weizmann NaBi International laboratory. We thank R?mi Habert and Karen Delplace for technical assistance.
PY - 2016/8/1
Y1 - 2016/8/1
N2 - We investigate lensless endoscopy using coherent beam combining and aperiodic multicore fibers (MCF). We show that diffracted orders, inherent to MCF with periodically arranged cores, dramatically reduce the field-of-view (FoV), and that randomness in MCF core positions can increase the FoV up to the diffraction limit set by a single fiber core, while maintaining a MCF experimental feasibility. We demonstrate experimentally pixelation-free lensless endoscopy imaging over a 120 μm FoV with an aperiodic MCF designed with widely spaced cores. We show that this system is suitable to perform beam scanning imaging by simply applying a tilt to the proximal wavefront.
AB - We investigate lensless endoscopy using coherent beam combining and aperiodic multicore fibers (MCF). We show that diffracted orders, inherent to MCF with periodically arranged cores, dramatically reduce the field-of-view (FoV), and that randomness in MCF core positions can increase the FoV up to the diffraction limit set by a single fiber core, while maintaining a MCF experimental feasibility. We demonstrate experimentally pixelation-free lensless endoscopy imaging over a 120 μm FoV with an aperiodic MCF designed with widely spaced cores. We show that this system is suitable to perform beam scanning imaging by simply applying a tilt to the proximal wavefront.
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U2 - 10.1364/OL.41.003531
DO - 10.1364/OL.41.003531
M3 - Article
AN - SCOPUS:84979986928
VL - 41
SP - 3531
EP - 3534
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 15
ER -