posted on 2023-01-12, 15:12authored bySiddharth Sivankutty, Andrea Bertoncini, Victor Tsvirkun, Naveen Gajendra Kumar, Gaelle Brévalle, Géraud Bouwmans, Esben Ravn Andresen, Carlo Liberale, Hervé Rigneault
We report high efficiency, miniaturized, ultra-fast coherent beam combining with 3D printed micro-optics directly on the tip of a multicore fiber bundle. The highly compact device foot-print (180 micron diameter) facilitates its incorporation into a minimally invasive ultra-thin nonlinear endoscope to perform two-photon imaging