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2. Two-Photon Lensless Endoscopes with Multicore Fibers

Author

Moussawi, Fatima El, primary, Hofer, Matthias, additional, Sivankutty, Siddharth, additional, Bertoncini, Andrea, additional, Labat, Damien, additional, Cassez, Andy, additional, Bouwmans, Geraud, additional, Cossart, Rosa, additional, Vanvincq, Olivier, additional, Liberale, Carlo, additional, Rigneault, Herve, additional, and Andresen, Esben Ravn, additional

Published
2023
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10. Near-Infrared OAM Communication Using 3D-Printed Microscale Spiral Phase Plates.

Author

Stegenburgs, Edgars, Bertoncini, Andrea, Trichili, Abderrahmen, Alias, Mohd Sharizal, Ng, Tien Khee, Alouini, Mohamed-Slim, Liberale, Carlo, and Ooi, Boon S.

Subjects
*SURFACE emitting lasers, *FREE-space optical technology, *QUANTUM communication, *OPTICAL communications, *OPTICAL fiber communication, *ERROR rates
Abstract

We report the use of 3D-printed microscale spiral phase plates to generate orbital angular momentum (OAM) carrying beams. We confirm that the generated beams have high purity, and we have successfully tested them to convey data signals with low bit error rates at the wavelength of 980 nm. This method will open new opportunities for generating OAM beams for many applications in optical communications, including free-space optics, as well as underwater, chip-tochip, and quantum communications. [ABSTRACT FROM AUTHOR]

Published
2019
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11. Polarization Micro-Optics: Circular Polarization From a Fresnel Rhomb 3D Printed on an Optical Fiber.

Author

Bertoncini, Andrea and Liberale, Carlo

Abstract

High-resolution fabrication of three-dimensional polymeric structures with direct laser writing (DLW) holds a unique potential for the miniaturization of bulk optical elements. This has been so far mainly demonstrated for the fabrication of reflective, refractive, and phase-mask micro-optics. Here, we show the use of DLW for the fabrication of a miniaturized phase retarder element, a Fresnel Rhomb, which acts as a broadband quarter-wave plate. We show the integration of the Fresnel Rhomb onto a polarization-maintaining optical fiber, converting linearly polarized light from the fiber into circularly polarized light over a very broad spectral range. [ABSTRACT FROM AUTHOR]

Published
2018
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