Miniature 120-Beam Coherent Combiner With 3d-Printed Optics For Multicore Fiber-Based Endoscopy

Siddharth Sivankutty,Andrea Bertoncini,Victor Tsvirkun,Naveen Gajendra Kumar,Gaelle Brévalle,Géraud Bouwmans,Esben Ravn Andresen,Carlo Liberale,Hervé Rigneault

OPTICS LETTERS（2021）

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摘要

In this Letter, we report a high-efficiency, miniaturized, ultra-fast coherent beam, combined with 3D-printed micro-optics directly on the tip of a multicore fiber bundle. The highly compact device footprint (180 mu m in diameter) facilitates its incorporation into a minimally invasive ultra-thin nonlinear endoscope to perform two-photon imaging. (C) 2021 Optical Society of America

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