Analytical Description of Cross-Modal Nonlinear Interaction in Mode Multiplexed Multimode Fibers

作者：Rademacher Georg^*; Warm Stefan; Petermann Klaus

来源：IEEE Photonics Technology Letters, 2012, 24(21): 1929-1932.

DOI：10.1109/LPT.2012.2219519

• Multimode fiber
• nonlinear fiber optics
• optical transmission
• space-division multiplex (SDM)

In this letter, we present a semianalytical approach to calculate the nonlinear interference between mode-multiplexed signals that are transmitted over the eigenmodes of a multimode fiber (MMF). We point out the influence of several fiber parameters on nonlinear mode interaction using four-wave mixing concepts. Finally, we apply the presented theories on a mode-division multiplexed transmission link, which uses a graded index multimode fiber. It is shown, in a configuration, that each of the MMFs 55 modes achieves an optical signal to noise ratio at the receiver at least as high as a standard single-mode fiber, resulting in a higher overall capacity than 55 single-mode fibers.

• 出版日期2012-11-1