Multimode Optical Fiber Beam-By-Beam Cleanup
| Autor: | Mario Ferraro, Fabio Mangini, Yann Leventoux, Alessandro Tonello, Mario Zitelli, Tigran Mansuryan, Yifan Sun, Sebastien Fevrier, Katarzyna Krupa, Denis Kharenko, Stefan Wabnitz, Vincent Couderc |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: |
Optical transistor
FOS: Physical sciences Physics::Optics Multimode fibers Spatial beam self-cleaning Optical beams Atomic and Molecular Physics and Optics Ultrafast optics Optical fiber communication Fiber nonlinear optics Optical switches Physics::Accelerator Physics Laser beams Optical fiber polarization Optical switch Optics (physics.optics) Physics - Optics |
| Popis: | We introduce and experimentally demonstrate the concept of all-optical beam switching in graded-index multimode optical fibers. Nonlinear coupling between orthogonally polarized seed and signal beams permits to control the spatial beam quality at the fiber output. Remarkably, we show that even a weak few-mode control beam may substantially enhance the quality of an intense, highly multimode signal beam. We propose a simple geometrical representation of the beam switching operation, whose validity is quantitatively confirmed by the experimental mode decomposition of the output beam. All-optical switching of multimode beams may find important applications in high-power beam delivery and fiber lasers. |
| Databáze: | OpenAIRE |
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