Space division multiplexing in standard multi-mode optical fibers based on speckle pattern classification
| Autor: | Guy Verschaffelt, Jaël Pauwels, Guy Van der Sande |
|---|---|
| Přispěvatelé: | Applied Physics and Photonics, Applied Physics |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Optical fiber
Fibre optics and optical communications Optical communication lcsh:Medicine Physics::Optics 02 engineering and technology 01 natural sciences Multiplexing Article law.invention Optique des fibres (électromagnétisme) 010309 optics Speckle pattern 020210 optoelectronics & photonics Optics Polarization scrambling law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering lcsh:Science Physics Multidisciplinary Multi-mode optical fiber business.industry Photonic devices lcsh:R Single-mode optical fiber Imaging and sensing Polarization (waves) lcsh:Q business |
| Zdroj: | Scientific Reports Scientific Reports, 9 (1 Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019) |
| Popis: | In optical communications the transmission bandwidth of single mode optical fibers is almost fully exploited. To further increase the capacity of a telecommunication link, multiplexing techniques can be applied across 5 physical dimensions: amplitude, quadrature, polarization, frequency and space, with all but the latter being nearly exhausted. We experimentally demonstrate the feasibility of an original space division multiplexing technique based on the classification of speckle patterns measured at the fiber’s output. By coupling multiple optical signals into a standard multimode optical fiber, speckle patterns arise at the fiber’s end facet. This is due to quasi-random interference between the excited modes of propagation. We show how these patterns depend on the parameters of the optical signal beams and the fiber length. Classification of the speckle patterns allows the detection of the independent signals: we can detect the state (i.e. on or off ) of different beams that are multiplexed in the fiber. Our results show that the proposed space division multiplexing on standard multimode fibers is robust to mode-mixing and polarization scrambling effects. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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